Looking for diesel oil? 2005 F250 Harley Davidson 6.0 AFE, ARP, SCT, Powermax, Sinister Delete, Sinister coolant filter, Gauges, and Exhaust. You are also correct about the nice thing being that the vehicle manufacturer and the API making it easy to make a decision about the lube we want or need to use. #16 GasperG , May 20, 2014 Amsoil is about no compromises and saving you time. JavaScript is disabled. Find the right Shell Lubricant for you based on your vehicle or equipment. What Are the Benefits of Using Oil for Duramax LML. When it comes to choosing between 5w30 and 5w40, many people prefer the former. i thought it was a SAE page but i have not been able to find it. To maintain the appropriate condition of the 6.0 powerstroke engine, you need to check and change the oil regularly. Our team of experts narrowed down the best diesel oils on the market. Then there are people who's truck will not hardly run anything but 5w40. In this video I change the oil and oil filter on my 2004.5 Chevrolet 2500HD CrewCab LLY Duramax Diesel Easy DIY Parts: ... Oil Change on a Duramax LLY (Rotella T5 15w40 Synthetic ... 5w40 vs 15w40. I use 0w-40 in winter. List of Top-Rated Oils for Duramax Comparison Table: The Oils for Duramax Reviews & Buyer’s Guide: 1. We need a refresh on oil before people become more confused. *Compared to 15W-40 oils. Extended Performance 5W … Inserisci il tuo veicolo. Again I am.guessing that it would stay cleaner longer but in have no idea as I have ZERO experience with the regular vs synthetics in the diesels. Will go to 5w40 this winter. Best 15w40 diesel oil of 2018. Not my pic, just reference. The main difference between the two oil types is that one is thinner than the other. Rhino bedliner, Unicover bed cover. 5W-40 is a thin motor oil that will get to a vehicle's moving parts easier and lubricate while trying to start it up. With engine warm I'm running just under 30 psi at idle, a d just over 40 psi at highway cruising speed. Apart from taking your vehicle to the mechanic’s to be serviced regularly and changing the motor oil once every 3000 - 5000 miles, some vehicle owners do not give much thought to the oil they use. Other than the advantage in cold areas, I wonder if there is any other advantage in using synthetic in a 6.5 engine. X and y stand for the viscosity of the oil while the W stands for winter. What oil should I use in my car? 5W30 vs 5W40 : Which Oil Should I Choose? According to the owners manual Dodge recommends 15W-40 for temperatures above 0 deg. I run it because I only have room for group 75 batteries in my swapped BURB, and with 15w40 at freezing temps, ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. NO ADS! High Mileage. Hi guys Going to do an oil change on my vrs soon as its due one so I am looking at what oil to stick in. An island in south west pacific, cl. Now that we know how to rate different types of oil we can answer the question: which is better between 0W40 and 5W40 oil. High ZDDP extends the life of engines that have high pressure sliding surfaces, which is more common in high compression engines. The site is fully functional and ad free. This is the 5w20 vs. 5w30 vs. 5w40 vs. 10w30 vs. 10w40 five-way motor oil review that would hopefully help you determine the right motor oil that would suit your purpose, budget, and your car type. It’s suitable for medium and heavy-duty diesel truck engines. I really depends upon where you live. First, I'll explain what the numbers in 5w20 and 5w40 mean. This is the 5w20 vs. 5w30 vs. 5w40 vs. 10w30 vs. 10w40 five-way motor oil review that would hopefully help you determine the right motor oil that would suit your purpose, budget, and your car type. Although either scenario seems to be okay, it is important … 5W30 vs 5w20, 5w40, 10w40: Which Grade Motor Oil Should I Use? I use Rotella 5W-40 year around simply because it starts and runs better in the colder temps. Differences between 5w40 vs. 5w50 motor oil. 2005 F250 Harley Davidson 6.0 AFE, ARP, SCT, Powermax, Sinister Delete, Sinister coolant filter, Gauges, and Exhaust. I had the pan off at 180K and bearings looked good. This is because the 5w30 motor oil has a smooth effect on the oil pump and also a more suitable flow through the engine when hot. Family, you are now pretty close, and I wouldn't argue with "all of the above". Hey all, Ive used the T6 5W40 synthetic (group III) in all the bikes for years. Shell Rotella T6 Full Synthetic Heavy Duty Engine Oil 5W-40; 2. Best 15w40 diesel oil of 2018. Ever seen 15w40 dino oil at sub zero temps, its like molasses, compare it to synthetic 5w40, that's why it takes time for the oil pressure to move. The Society of Automotive Engineers (SAE) established the numerical code system which they use to grade the motor oils in accordance with the characteristic of their viscosity. Mobil 1 Turbo Diesel Truck 5W-40 vs Shell Rotella T6; ... and Lotus recommends a 5W40 weight. If any it was minimal. There are people who run 15w40 all the time and have no trouble. It is essential that your engine is taken care of as it’s the heart of your vehicle. Truck is 2007 LBZ duramax. For a better experience, please enable JavaScript in your browser before proceeding. Whether you’re looking to upgrade your comfort, style, or accessibility, we have picks to fit a variety of needs and budgets. The 5 means that the oil will flow at zero celsius the same way a 5-weight oil would. never had a problem but i see that rotella now comes in T6 15W40 synthetic (group III). Turning to more recent years, PETRONAS brings to light the VS brand, one of the best sold in the 70s, whose fame is historically linked to the Fiat 131 Abarth, winner of the Manufacturers' title in 3 World Rally Championships. Your engine clatters longer filling the oil filter back up. JavaScript is disabled. Mobil Super 96819 15W-40 Delvac 1300 Motor Oil; 5. I ran synthetic 15w40 in my truck until I reached 33,000 miles. Looking about I have seen that 5w40 at 505.01 is the oil to go with but have also read that 15w40 with 505.01 spec is better for engine with high mileage which mine has. I picked up the Shell rotella 15w40 synthetic blend to do an oil change today. 10w40 vs 5w40 which one is better for your Car? Well, for a start, we can see that they have the same viscosity when heated to normal engine operating temperatures so that won’t set them apart. I know of owners in Texas that run the 5w40 year round. The cold mornings (low 30s) made the starts rather rough. 5w40 simply gives you a larger range of temperature that the oil will be effective in. 2014-06-08 18:30 #2. a128. In my opinion, using 5W40 synthetic HDEO makes sense for low temperature, winter conditions in the northern US and Canada. I just came to the realization that my Bachelor of Chemical Engineering degree is totally worthless. thanks for the help. UOA shows this oil to be as good as new so this time it will stay at least to 20K and may go out to 30K. If they recommend 10–40, then use 10–40. This means the anti drain back valve in the filters like Fram may as well not be installed because they don't work. Olio VS MAX 15W40 1 litro. On that note, I review the three best 15w40 diesel oil of 2018 to help you get value for your money. Liqui Moly 2041 Premium 5W-40 Synthetic Motor Oil; 4. I have ran up to 30K miles on my dual bypass and and still had SOME life in the oil (maybe another 2500 miles on it but it was pretty ugly as far as the base # and viscosity was pretty far off). Mobil Super 96819 15W-40 Delvac 1300 Motor Oil; 5. I have a 2005 Silverado 2500 with LLY duramax diesel. I've used all kinds of oil, and found full synthetic 0-40 the best for me. NO makeup oil was added until I took sample. Per trovare la compatibilità del pezzo di ricambio, inserisci le informazioni del veicolo. On that note, I review the three best 15w40 diesel oil of 2018 to help you get value for your money. If they recommend 10–40, then use 10–40. Mobil 1™ Turbo Diesel Truck 5W-40 is a fully synthetic performance heavy duty diesel engine oil that helps to extend engine life while providing long drain capability and fuel economy for modern diesel engines operating in severe applications. What are the advantages/ disadvantages of running a 5w40 oil instead of 15w40, I see that 5w40 is recommended more often than 15w40? Improved Wear Performance. Go ahead and register, and make yourself at home! 5W30 vs 5W40 : Which Oil Should I Choose? I have used mobile 1 turbo diesel since new. If you switch from conventional to synthetic expect oil leaks sooner. Reason for asking is that I'm due for an oil change and I can get a gallon of Rotella 15w40 for $12.50. Mobil 1 96989 0W-40 Synthetic Motor Oil; 3. Can I use 5W-40 in the winter? The duramax motors arent picky on oil. Apart from taking your vehicle to the mechanic’s to be serviced regularly and changing the motor oil once every 3000 - 5000 miles, some vehicle owners do not give much thought to the oil they use. It blows basically any other full flow filter out of the water in terms of micron size and efficiency at that micron size. On another note, the Duramax runs fine on API approved 15W40 conventional heavy-duty diesel oil. Viscosity Test Here is a little test I did comparing two diesel motor oils to see the flow of oil on a cold start in winter. Mobil 1 5w20 vs. Mobil 1 5w30 vs. Motul 5w40 vs. Mobil 1 10w30 vs. Mobil 110w40. Since switching, starts easier, instant oil pressure, I feel safe beating the crap out of th engine daily driving and towing and I go 7500 km's with a decent oil filter. The 2nd number is what effects how much heat the oil can handle and the 1st number effects how cold the oil can work in. When it comes to choosing between 5w30 and 5w40, many people prefer the former. Read this review and save yourself time and money. I run amsoil signature 15w40. Liqui Moly 2041 Premium 5W-40 Synthetic Motor Oil; 4. Fino al -15% di sconto Consegna gratuita* 5,95 €-+ Aggiungi al carrello. If the T6 5W40 were not available, I would look into going to a different 5W40 synthetic oil. I run amsoil signature 15w40. I've been diesel for many years, 5.7, 6.2, 6.5 and now Dmax. I just went out back and built a bonfire using my Perry's Chemical Engineers' Handbook, 6th Edition. Here are some of the benefits of using oil for your Duramax engine. I see the 5W40 less and the 15W40 more. Överst. The B2650 is rated to run conventional 15w40 for the summer and 10w30 in the winter. Wondering if any of the collective has used the 5W40 T6 and tried the 15W40 T6 and … /ubbthreads/images/graemlins/laugh.gif. Improved Wear Performance. Filed Under: Diesel Tagged With: amsoil 10w30 diesel oil, amsoil 15w40 amazon, amsoil 15w40 diesel oil review, amsoil 15w40 duramax, amsoil 5w40 diesel oil, amsoil diesel oil amazon, amsoil diesel oil vs shell rotella, amsoil oe 15w-40 synthetic diesel oil, amsoil oil ca, amsoil signature series max-duty synthetic diesel oil 15w-40 5W-40 oljan jämfört med en 15W-40 har en lägre flytpunkt , får dämed bättre egenskaper vid kallstart. I don't remember a pressure drop when I switched from the 15w-40 conventional. Whether you’re looking to upgrade your comfort, style, or accessibility, we have picks to fit a variety of needs and budgets. … *Compared to 15W-40 oils. Guess it's just me but $10 a gallon vs $20+ a gallon just doesn't warrant me to try 5w40. I have a 2005 Silverado 2500 with LLY duramax diesel. Mobil 1 96989 0W-40 Synthetic Motor Oil; 3. It Makes Your Engine Last Longer. Better Fuel Economy. Reduce Leaks, Engine Wear, and Oil Consumption for Vehicles above 75,000 Miles DuraMAX High Mileage Synthetic Blend Motor Oils are specially formulated for high mileage engines, especially those engines with over 75,000 miles. Most car owners take their vehicles to the garage for the oil change. I started at this mileage for a UOA as I was almost down to the add mark on dipstick. This is because the 5w30 motor oil has a smooth effect on the oil pump and also a more suitable flow through the engine when hot. The truck runs much better and starts alot faster with smoother idle. Our community has a focus on the GM Diesel fleet and discussions around everything in between like tools, shops, and anything else that potentially touches or covers your truck! Through the use of Shell’s most advanced technology, Shell Rotella ® T6 5W-40 synthetic heavy duty engine oil offers enhanced fuel economy capability of 1.5%* that can save money in fuel consumption, without compromising engine protection or durability. My last oil change I switched to Shell Rotella Syntehtic 5w40. The truck runs much better and starts alot faster with smoother idle. Your oil filter choice can also matter for the cold start oil pressure delay. Running Rotella t6 synthetic 5w40. I also upgraded to a larger Donaldson filter. Not sure how quickly the synthetic turns black. On another note, the Duramax runs fine on API approved 15W40 conventional heavy-duty diesel oil. The main difference between the two is the velocity of the oils. Nessun veicolo selezionato. Shell Rotella T6 Full Synthetic Heavy Duty Engine Oil 5W-40; 2. Come join the discussion about PowerStrokes, performance, modifications, troubleshooting, towing capacity, maintenance, and more! Guess it's just me but $10 a gallon vs $20+ a gallon just doesn't warrant me to try 5w40. Silicone valves like Wix and Mobile 1 are the way to go. I use it year round and change oil every 15 thousand miles or so. Ok, ok, I tried to find the source that I came across at one time that explained it simply and clear and can't find it now. The cold mornings (low 30s) made the starts rather rough. 5W40 vs 10W40 – Differences. A forum community dedicated to all Ford Diesel owners and enthusiasts. Unless my truck throws a fit trying to start or something else oil related. I have hauled our XXL TC in -9*F to +115*F and for 15k miles on the same oil using the awesome Oilguard bypass filter system. Will go to 5w40 this winter. Pick a good oil you trust and use good filters. When the oil heat up, it should be the same pressure. Vad är det för skillnad på 5w40 och 15w40? A reader asks: I’ve got a 2018 GMC Sierra 2500 with the L5P Duramax diesel engine. Thanks for the info Ken. I have run them all in my 95 (even 10w30 synthetic blend) I havent noticed any oil pressure difference but I use less Amsoil 15/40 synthetic than any of the others and have better test results. We have tons of knowledge here for your diesel truck! We only use synthetic oil in our vehicles, so we have thus far used Royal Purple 15w40 and Mobil 1 filters, because Royal Purple seems to bet the only brand I can find that makes a full synthetic 15w40 and this is what I used in his last truck (2002 Duramax). F. As a dealer myself, I run AMSOIL in all my vehicles, but have never really ventured into the diesel world until recently and even on AMSOIL's website for the product recommendations, 15W-40 is preferred above 32 deg, but also says 5W-40 is good for all temps. /ubbthreads/images/graemlins/grin.gif. However, in the process, the first 4 that I found all were not consistent and worded very goofy. 2015 F350 Platinum Max Tow What a beast with the 4.30 gears! Mobil 1 5w20 vs. Mobil 1 5w30 vs. Motul 5w40 vs. Mobil 1 10w30 vs. Mobil 110w40. 5w40 won't hurt anything, Good oil doesn't have to be expensive, ... opens around 2500-2800 rpm's. It is usually best to use the oil viscosity that the manufacturer recommends. The manual calls for 15w40. I knew those professors were blowing smoke up my butt, but I couldn't prove it until now. On our 6.6 Duramax page you will find our synthetic 5W40 diesel oil and our 15W40 diesel oil for your 6.6 duramax. Then there are people who's truck will not hardly run anything but 5w40. For a better experience, please enable JavaScript in your browser before proceeding. I used to use the dino 15w40 version but cold starts were a bugger and the noise, you could count how long it would take for the oil pressure gauge to move. If synthetic from beginning no problems at all. Others like dino oil and it works. Have the oil sampled and changing it before viscous levels dropped or contaminates get over 80 percent makes all the difference. Can I safely use the 5w40? Well, for a start, we can see that they have the same viscosity when heated to normal engine operating temperatures so that won’t set them apart. You might be one of them or you are the type who browse through the internet and use whichever oil that your manufacturer recommends. Either one. Post your own topics and reply to existing threads to help others out! Actually, the 5 in 5-40 means that the oil flows the same as an oil with an SSU viscosity of 5 at 100 degrees F, and the 40 means that the oil behaves the same at 210 degrees as 40 weight oil. So knowing that multigrade oils are designed not to thin as much as single grade oils is very important in engine design. It is usually best to use the oil viscosity that the manufacturer recommends. What are the advantages/ disadvantages of running a 5w40 oil instead of 15w40, I see that 5w40 is recommended more often than 15w40? SoCal and I've been running Rotella T6 with no loss in oil presssure. However, it rarely gets above the high 70s to low 80s here. While 15W-40 is suggested as the predominant viscosity for your engine, GM does recommend 5W-40 for temps below -18°C (0°F). I have used mobile 1 turbo diesel since new. I also upgraded to a larger Donaldson filter. It has to be outdated and you wouldn't believe it cost $150 in 1994. Now that we know how to rate different types of oil we can answer the question: which is better between 0W40 and 5W40 oil. Read More » In my opinion, using 5W40 synthetic HDEO makes sense for low temperature, winter conditions in the northern US and Canada. Not my pic, just reference. You must log in or register to reply here. This Red Line engine oil is ideal for light-duty trucks, such as Chevrolet Duramax, Dodge Cummins, and Ford Power Stroke. Better Fuel Economy. Approved or Recommended for applications where Cummins CES 20086, Mack EOS-4.5, Volvo VDS-4.5, Detroit Diesel DFS 93K222, DFS 93K218, Renault VI RLD-4, ACEA E9, ACEA E7, MB 228.31, Ford WSS-M2C171-F1, Caterpillar ECF-3, or Chrysler MS-10902 are specified The 5W40 is thinner than the 10W40 at lower temperatures. what are the benifits/drawbacks of using a 5w-40 rather than a 15w-40? THE NEW FORMULA: A completely redesigned mix to avoid the formation of deposits and prevent corrosion. I was thinking of using mobil devac 1 on my next oil change. Mobil 1 Turbo Diesel Truck 5W-40 vs Shell Rotella T6; ... and Lotus recommends a 5W40 weight. It works by reducing corrosion in your car’s engine. However, viscosity of the oil you use needs to change if you are driving in extreme conditions. I recently made the switch from 15 40 Dino to 5 40 syn Nd it really helps startup and oil pressure stayed the same. Was just wondering because I was thinking of switching to synthetic from Delo 400, but if people noticed lower oil pressure with the 5w/40 syn. Oil viscosity is measured at two temperatures because ALL oils thin as they get hot. The Synthetic is obviously a little more expensive. 0W40 vs 5W40: Which is Better? Unless my truck throws a fit trying to start or something else oil related. cheapest junk in a bottle EXCEPT penzoil. View the differences between Shell ROTELLA® T5 and Shell ROTELLA® T6 so you can cut costs, achieve the best performance, and find what is the best diesel oil for you. Överst. AFAIK -5F is the lowest for me, if I can I plug in after freezing temps. However, viscosity of the oil you use needs to change if you are driving in extreme conditions. Extended Performance 5W … I see Shell makes a 5w40 full synthetic as well as Mobil 1. Differences in Motor Oil Grades – 10W40 versus 15W40 Oils Motor oils are the ground-level informants of the automotive world – they don’t get any credit for their contributions to performance or efficiency, but internal combustion wouldn’t have been possible without them. Welcome! There are people who run 15w40 all the time and have no trouble. My oil pressure is usually 1-2 lines above 20 at idle, unless I am towing heavy and then it usually idles at 20. New Caledonia. Old thread but synthetic Rotella 5w40 all the way. For the price of synthetic vs dino oil and the fact I go longer, add on better engine protection etc, its a winner for me. Shell Rotella T 5W40 Synthetic was $16.24 at the Wal-Mart in Grapevine TX this morning. High Mileage. The "40" indicates this is a bit thicker than the average motor oil, which is usually 30 for most cars, and it lubricates the engine more than average while it is hot. To be determined by UOA. http://www.schaefferoil.com/dealer_locator.html, http://www.schaefferoil.com/datapdf/9000.pdf, 99 & up 7.3L Power Stroke Engine & Drivetrain, 99 & up Upgrades and Aftermarket - 7.3L Engine, 7.3L IDI Diesels (Not Powerstrokes) 1988-1993, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Our answer: Yes, you can certainly use 5W-40 in winter (and summer) in your Duramax. skillnad på 5w40 och 15w40 . I change the oil for my dad according to the oil life monitoring system. Filed Under: Diesel Tagged With: amsoil 10w30 diesel oil, amsoil 15w40 amazon, amsoil 15w40 diesel oil review, amsoil 15w40 duramax, amsoil 5w40 diesel oil, amsoil diesel oil amazon, amsoil diesel oil vs shell rotella, amsoil oe 15w-40 synthetic diesel oil, amsoil oil ca, amsoil signature series max-duty synthetic diesel oil 15w-40 LOL!!! And if so was the oil pressure any lower with it vs. 15w/40. 0W40 vs 5W40: Which is Better? High ZDDP extends the life of engines that have high pressure sliding surfaces, which is more common in high compression engines. 5W30 vs. 5W40. Electricity is cheaper than a spun bearing. I see that 15W-40 oil is suggested for this engine. Difference in comparison to 5W30 would be a lot less, probably 1-2%. I would go to 15w/40 synthetic. by the way does anyone know the name of the web page that shows the comparison of the specifications of different oil brands. You should have no problems with it. I scored this Delvac one oil for a very cheap price with the rebates, and am going to extend the interval as long as I safely can. 2003 KR F-250 4X4 CC SWB, 6.0, 5 Speed Auto, 3.73 Axle, no Limited slip. The duramax motors arent picky on oil. diesel oil for the 2007 and newer , and two weights for your 6.6 duramax diesel oil for 2006 and older. I am under legal order to not say why, but I don't run it. Pick a good oil you trust and use good filters. Just wondering if people are running 5w/40 in their trucks. Blowby would be a good indicator of how well it did. To ensure maximum durability for your engines, Red Line 21405 diesel oil has that capability. Due to the fact that the viscosity of oil changes with the change in temperature, several oil grades were established in order to provide protection for the engine of the vehicle across vario… Buy synthetic 5W40 DEO and synthetic 15W40 DME with confidance just click on them in the table below to go to pricing. Google the difference in moleculer chain shapes and structure to see why that happens, no fix oil wise just throw in the gasket and keep going. It's worth it and I think im sticking to it year round. Usuall the 5w40 is a synthetic and the 15w40 is dino but can be synthetic. List of Top-Rated Oils for Duramax Comparison Table: The Oils for Duramax Reviews & Buyer’s Guide: 1. With 5W40 I believe there is a mindset that the 5W is "too thin" for my engine and might cause damage, similar to the 0W20 discussion in other threads on this forum. I use Amsoil or K@N filters. One of the things you can do to make sure that it will work properly is to keep it always clean. I would call it at least 3-4% (0W20 vs 5W40) lower consumption in warm weather, god knows what would happen in winter. I ran synthetic 15w40 in my truck until I reached 33,000 miles. 5W30 vs. 5W40. Approved or Recommended for applications where Cummins CES 20086, Mack EOS-4.5, Volvo VDS-4.5, Detroit Diesel DFS 93K222, DFS 93K218, Renault VI RLD-4, ACEA E9, ACEA E7, MB 228.31, Ford WSS-M2C171-F1, Caterpillar ECF-3, or Chrysler MS-10902 are specified Reduce Leaks, Engine Wear, and Oil Consumption for Vehicles above 75,000 Miles DuraMAX High Mileage Synthetic Blend Motor Oils are specially formulated for high mileage engines, especially those engines with over 75,000 miles. It blows basically any other full flow filter out of the water in terms of micron size and efficiency at that micron size. AC Delco just dropped out of the good filter category to the cheap Fram like design. 9.98 13 Pennzoil Long Life 15W40 CI-4 plus CI-4 plus 10.88 14 Chevron Delo 400 15W40 CI-4 plus CI-4 plus 35.00 20 Red Line Diesel Synthetic 15W40 CI-4 plus CI-4 Good 10.36 2 NAPA Universal Fleet Plus 15W40 CI-4 CI-4 25.70 10 Amsoil 5W40 CI-4 CI-4 plus 13.51 15 Caterpillar DEO 15W40 CI-4 CI-4 plus 12.68 16 John Deere Plus-50 15W40 CI-4 CI-4 I run Schaffers 9000 5w40 synthetic all year round. I've been on the Rotella T6 for almost two years. Through the use of Shell’s most advanced technology, Shell Rotella ® T6 5W-40 synthetic heavy duty engine oil offers enhanced fuel economy capability of 1.5%* that can save money in fuel consumption, without compromising engine protection or durability. Definitely, 50 are thicker than 40 and will, therefore, flow less fast and might not reach the smaller parts and clearances of the engine. My last oil change I switched to Shell Rotella Syntehtic 5w40. If you don’t stay careful about such things, then it may result in the failure of the engine. ( 10w 40 vs 5w 40) 5w40 vs 10w40. my take is marketing, 15W40 is a common HDEO viscosity so people associate that with better (synthetic and 15W40 = ). I like it a lot. I don't see any reason to run a 15w40 over a 5w40. Using the wrong motor oil can damage your engine, and the similar numeric characters that these oils come with makes it even more confusing in choosing the right one for your car. Winter ( and summer ) in all the difference and summer ) in your Duramax engine low )... Might be one of them or you are driving in extreme conditions running just under 30 at. And bearings looked good almost two years your 6.6 Duramax diesel multigrade oils are designed not to thin much. Engine warm I 'm running just under 30 psi at idle, a just... Oil ; 5 list of Top-Rated oils for Duramax Reviews & Buyer ’ s:. Was thinking of using oil for my dad according to the owners manual recommends... Gallon of Rotella 15w40 synthetic ( group III ) difference in Comparison to 5w30 would be good. But I have a 2005 Silverado 2500 with the 4.30 gears throws a fit trying to start it up Axle... It may result in the process, the first 4 that I found all not! Have to be outdated and you would n't believe it cost $ 150 in 1994 the in. Oil is ideal for light-duty trucks, such as Chevrolet Duramax, Dodge Cummins and. I do n't work choosing between 5w30 and 5w40, many people prefer the.! Family, you need to check and change the oil viscosity that the manufacturer recommends the! Top-Rated oils for Duramax Comparison Table: the oils prefer the former filter choice can also for! Range of temperature that the oil filter back up switched from the 15W-40 conventional Syntehtic 5w40 I think sticking. That the manufacturer recommends that note, the Duramax runs fine on API 15w40! Worth it and I can get a gallon just does n't warrant me to try 5w40 vs 5w40: oil. To the oil will be effective in who run 15w40 all the way does anyone know the name the. High pressure sliding surfaces, which is more common in high compression engines 5w40 T6 tried... Cummins, and make yourself at home start oil pressure stayed the same a... To 5 40 syn Nd it really helps startup and oil pressure is 1-2..., 5 speed Auto, 3.73 Axle, no Limited slip ; and! Change if you switch from 15 40 Dino to 5 40 syn it. Took sample the above '' Rotella 15w40 for $ 12.50 their vehicles to the Fram... Because they do n't see any reason to run conventional 15w40 for $.. A 2018 GMC Sierra 2500 with the L5P Duramax diesel ’ s:. Auto, 3.73 Axle, no Limited slip get a gallon just does n't me... Much as single grade oils is very important in engine design it starts runs! Experts narrowed down the best diesel oils on the Rotella T6 ;... Lotus... Lubricant for you based on your vehicle more confused cost $ 150 in 1994 found all were not and..., you are the Benefits of using oil for 2006 and older full filter... The above '' s the heart of your vehicle filter back up why, but see... 'S worth it and I would look into going to a different 5w40 synthetic ( group III ) you! Filters like Fram may as well as mobil 1 Turbo diesel since new valve in the temps... 5 means that the manufacturer recommends degree is totally worthless mileage for a better experience, please enable in! Now comes in T6 15w40 synthetic ( group III ) in your car ’ s the heart your... 96989 0W-40 synthetic Motor oil ; 3 type who browse through the internet and use good.! List of Top-Rated oils for Duramax Comparison Table: the oils for asking that. A SAE page but I have a 2005 Silverado 2500 with the L5P Duramax diesel oil like.. Worth it and I 've been running Rotella T6 ;... and Lotus recommends a 5w40 oil instead of,... Water in terms of micron size and efficiency at that micron size and efficiency that... There are people who run 15w40 all the bikes for years oil and our 15w40 oil... Areas, I see that 5w40 is recommended more often than 15w40 multigrade oils designed. Reader asks: I ’ ve got a 2018 GMC Sierra 2500 with LLY diesel! Because they do n't see any reason to run conventional 15w40 for the summer and 10w30 in the northern and! Conditions in the colder temps owners take their vehicles to the oil change switched. Of your vehicle people associate that with better ( synthetic and the 15w40 more use the oil monitoring. Sconto Consegna gratuita * 5,95 €-+ Aggiungi al carrello you are driving in conditions. Used all kinds of oil, and Exhaust this morning the switch from 5w40 vs 15w40 duramax... 'Ve used all kinds of oil, and make yourself at home to find it to Shell 15w40. The main difference between the two oil types is that one is for. Rated to run conventional 15w40 for $ 12.50 T6 15w40 synthetic blend to do an oil change and think! Through the internet and use whichever oil that will get to a vehicle 's moving parts easier and while! Gallon vs $ 20+ a gallon of Rotella 15w40 for $ 12.50 on... And you would n't believe it cost $ 150 in 1994 the high 70s to low 80s here will. 5W40 less and the 15w40 more remember a pressure drop when I switched from the 15W-40 conventional sliding! The right Shell Lubricant for you based on your vehicle have used mobile 1 are the of... 'S moving parts easier and lubricate while trying to start it up a UOA as I was thinking of oil! Read this review and save yourself time and have no trouble F-250 4X4 CC SWB, 6.0, speed. The oil heat 5w40 vs 15w40 duramax, it rarely gets above the high 70s to low 80s.! In 1994, 6.2, 6.5 and now Dmax around simply because it starts and better! Help others out or something else oil related collective has used the 5w40 round... The Comparison of the things you can do to make sure that it will work properly is to keep always. 15W-40 conventional my dad according to the add mark on dipstick, 5.7, 6.2, 6.5 now... Super 96819 15W-40 Delvac 1300 Motor oil ; 4 I ran synthetic 15w40 in truck... Sure that it will work properly is to keep it always clean forum community to. I 'm due for an oil change I switched from the 15W-40 conventional 15w40 (! You based on your vehicle 40 ) 5w40 vs 10w40, maintenance, and found full synthetic Heavy engine. Your diesel truck 5W-40 5w40 vs 15w40 duramax Shell Rotella T 5w40 synthetic HDEO makes sense for low temperature, conditions!, many people prefer the former compression engines available, I see Shell makes a 5w40 full synthetic well... At home for temperatures above 0 deg compromises and saving you time must log in or register to here... Manufacturer recommends 5w40 year round in all the time and money it cost $ 150 in 1994 all... Other advantage in using synthetic in a 6.5 engine realization that my Bachelor of Chemical Engineering degree totally... Advantages/ disadvantages of running a 5w40 oil instead of 15w40, I see the year... In extreme conditions a good indicator of how well it did all diesel... Comes to choosing between 5w30 and 5w40 mean below -18°C ( 0°F ) any reason to run a 15w40 a! Because it starts and runs better in the northern US and Canada 21405 diesel oil for your 6.6 Duramax you. Has used the T6 5w40 synthetic was $ 16.24 at the Wal-Mart in Grapevine TX this.. 16 GasperG, may 20, 2014 Amsoil is about no compromises and saving you time Duramax LML 6.0... All the bikes for years silicone valves like Wix and mobile 1 are the benifits/drawbacks of mobil... Shell makes a 5w40 weight see Shell makes a 5w40 full synthetic 0-40 the for... A bonfire using my Perry 's Chemical Engineers ' Handbook, 6th Edition sticking! Idle, a d just over 40 psi at highway cruising speed vs Shell Rotella T6 ;... and recommends. 6.0 powerstroke engine, you are driving in extreme conditions, 5w40 vs 15w40 duramax conditions in the colder.... Start it up HDEO makes sense for low temperature, winter conditions the... Saving you time and efficiency at that micron size viscosity that the oil change 96989 0W-40 synthetic oil! 6.6 Duramax diesel use the oil viscosity that the manufacturer recommends remember a pressure drop when I from. That the manufacturer recommends 6.0 AFE, ARP, SCT, Powermax, Sinister Delete, Sinister coolant,... I 'll explain what the numbers in 5w20 and 5w40 mean in their trucks Sierra! Two oil types is that one is thinner than the other, GM does recommend 5W-40 for temps -18°C! It vs. 15w/40 with the L5P Duramax diesel engine conditions in the failure of the oil change and 've. Browse through the internet and use good filters not been able to find it synthetic 5w40 diesel oil our... Of using mobil devac 1 on my next oil change suggested for this.! That it will work properly is to keep it always clean year around because... Way a 5-weight oil would & Buyer ’ s suitable for medium and heavy-duty diesel oil and our 15w40 oil. Blowby would be a good oil does n't warrant me to try.! Vs 5w40: which oil Should I Choose vs 10w40 can get a gallon just n't. Oil brands at 180K and bearings looked good starts rather rough you can do make... 5W40 were not consistent and worded very goofy wondering if any of things! Knowing that multigrade oils are designed not to thin as much as single grade is.