5w40 vs 15w40. I might add that I have never had any engine trouble in 15 to 20 years or more from using this brand of oil. If you would like some info on WHOLESALE pricing- PM and I can get you a quote!!!! 37' Gearbox 5th Wheel Toyhauler carrying:'08 Kawasaki Teryx.. '05 Suzuki LTZ250.. '09 Yamaha YZ250F..'09 Yamaha TTR-50..'17 Honda CRF110, "Why is it I had to pass a drug test to get my Govt job and collect a paycheck yet others who collect a paycheck from the Govt don't hold a job and CAN'T pass a drug test...? 2007 Silverado Classic 2500HD EC, SB Purchased New, BD LH Exhaust Manifold, EGR Delete, EFI Live DSP5 tunes by Duramax Tuner, Diamond Eye 3" Downpipe, Banks 4" Monster exhaust, Banks 3" Intercooler tube, AFE Turbo Inlet Tube, Kennedy dual lift pump, Bilstein shocks, 285x70-17 BFG T/A KO2 on 17x8.5 Chrome H2 Boulder wheels, In-bed 50gal tank/toolbox, All on headlight mod with HIR bulbs, Autometer Boost and EGT gauges on A-Pillar, 2 Banks iDash 1.8 monitors. The manual calls for 15w40. But also for recent engines. I know this topic has been beat to death and I've read countless threads on here but I'm looking for some specific feedback. Typische Viskositäten: 5w40, 5w30, 10w40. I know the Motorcraft 15w40 falls under Fords new oil WSS-M2C171-F1 requirement and I trust that the dealership would put the right oil in it under the requirements. amsoil. I'm comfused about wheather to run 15w40 or 5w40. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! MANNOL Extreme Motoröl SAE 5W-40 VW 502 00, VW 505 00, MB 229.5, 20k Liter. If you don't want to spend the extra bucks, Mobil 1 or Rotella are good choices. For a better experience, please enable JavaScript in your browser before proceeding. Does anyone use this oil and how does it compare with others? 2007.5 Chevy Silverado 2500 HD ext cab short bed 4x4. when and why I use certain oils. In So. Can you explain? And which one should you use? I think I'll stay with 15w40. Delo rotella amsoil Schaeffers. ARAL High Tronic SAE 5W-40 20 Liter VW 505.01 MB 229.51 dexos2. AirLift 25415 auto-leveling bags/compressor. fuel filter w/primer pump(REMOVED), Duramax First Generation: 2001-2004 (LB7), Duramax Second Generation: 2004.5-2005 (LLY), VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. when and why I use certain oils. At operating temp the viscosity is the same as the other xxW40 oils. Mine says 15w40...that's what I use. JavaScript is disabled. I also installed my FS2500 finally as well into the oilling system. Es handelt sich um Mehrbereichsmotoröle, die unter verschiedenen Temperaturbedingungen zuverlässig einsetzbar sind. What does the owner's manual say? You could easily do the 15-40 in your climate. Up here in the great white north(canada) we get cold winters and pretty hot and muggy summers but the rotella works great. I just had my first free oil change in my 2017 Duramax, and the dealer used Mobil Delvac 1300 Super 15W40 - the new CK4/SN formulation. EUR 67,99. " I've been wondering if there is an advantage in using 15w-40 over 5w-40" - if your engine shears oil then yes possibly over a long interval. Automotive; Home; Health & Household ; Sports & Outdoors; Games; Crafts & Sewing; Arts; Accessories; Blog. I use rotella 5W40 synthetic all year round and no probs. CST UCAs..Rare Parts Pitman/Idler/Tie rods, Allison Deep Trans Pan/Mobil Delvac 1 ATF, Mobil Delvac 1300 15w40/M1 or Baldwin Filter, Wolf Spray-in Bedliner/Husky 16k 5th Wheel Hitch. I understand the factory oil fill in the Duramax is still Mobil Delvac 1300 Super 15W40. you end up with a extra filter. A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. What is the difference between them? And so far I have seen to many trucks with vgt turbo problems with sludge in the turbo running 15w40 rotella for my liking. But if that's all the colder it gets (down to 20ish-), you would be fine with the 15w-40. 5W40. Viscosity (Low- shear rate) 9.3 – 12.5mm 2 /s at 100g. And I have always used it in my 6.2s and never had a problem. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! But when the temperature is higher, both motor oils similarly perform their intended functions (using the same viscosity). A no brainer...and every time I make a trip across the line I head to Wallyworld and pick up a few bottles as well. Member #10 of the "OIL is OIL" association, I said "Yeah". And Mobil 1 is a great oil. EUR 57,99. Shell Rotella T6 Full Synthetic Heavy Duty Engine Oil 5W-40; 2. 5W40 vs 10W40 – Differences. I know lots of people that use it in a racing environment. How to; Contact Us; Top 10 Best Oil for Duramax of 2021 – Buyer’s Guide. I don't see any reason to run a 15w40 over a 5w40. Thanks fellows. Member #2 of the "OIL is OIL" association, Super Chips Programmer on "Tow-Safe" Mode, AutoMeter Pryometer and Boost Guages on "A" Pillar, Big O Tires, Big Foot, Highway Tread Design, LT 245/75R16 M&S on Factory Polished Aluminum 6.5" Rims. Thanks in advance!! 6.6L Duramax Maintenance Schedule, Fluid Capacities, and Service Part Numbers . But that was in a place where it was 20*F but I moved to a colder place. 2004 GMC Sierra 2500 HD SLT CC D/A LLY, Rancho RS9000X, ARE Z series, line-X, 3500 clearance lightbar under tailgate, Randy Ellis Design lightbar with 4 KC Hilites Ralley 800, Bridgestone Dualer AT 695 series in a 285-75-16, my Garage is weak but I am gonna work on it soon so somebody...anybody...will give me some love! I said " Because you have a gun, a faster car, a radio, lots of friends with radios, pepper spray and handcuffs". For a better experience, please enable JavaScript in your browser before proceeding. Coming up on my next oil change and wondering which I should use here in SoCal? I'd stick with the 15W-40. No Off-Roading. The 5W40 is thinner than the 10W40 at lower temperatures. EUR 99,90. ", Member #2 of the "OIL is OIL" association, "The strongest reason for people to keep and bear arms, is as a last resort , to protect themselves against tyranny in government". I have run 15W-40 for 130k miles and don't have any issue getting the oil to where it needs to go, that being said in a colder climate the 5W will help the cold weather starts. I was planning on extending my OCI's to 10k from 6k. Personally I use the Amsoil 5w40 DEO but you could use either. What is the humidity with that (just out of curiosity, not oil related, just wondering how muggy that would be...). List of Top-Rated Oils for Duramax Comparison Table: The Oils for Duramax Reviews & Buyer’s Guide: 1. Cal you could use either- the 5 is just a lot better guarantee for easier starting for us in COLD weather- lol. 2008 Duramax, Crew Cab Long Bed, 4wd, White, with factory bed liner. After that, it will then end up being the same as the 10w40. Explaination: In most vehicles using a heavier weight oil won't have any noticeable effect. Usually can get twelve for ~100 bones. 20 Liter Motoröl MANNOL 7915 Extreme 5W-40 … The 5W40 engine oil is made for those who have a car with a sports engine, or for those who have a conduct that is very demanding the engine, and thus a dynamic driving with many starts and stops. I firmly believe you will be happier, as well as your truck!!!!! BANKS RamAir intake, MBRP turbo-back, Rotella T6 (5w-40), Quadzilla Stealth-2, DJM 7.5"/9" drop, Rancho RS9000s. If temps allow it's best to use 15w40 since it offers better shear protection than 5w40 during periods of heat and stress. I'm now on synthetic 5W40 because I bought about ten cases of it two summers ago for $70 a case taxes in. Delo rotella amsoil Schaeffers. Mobil 1 96989 0W-40 Synthetic Motor Oil; 3. I just changed the oil in my dads truck, and he used 15w-40 and in the 30* weather it comes out like molasas, where my 5w come out like syrup. How long or how many miles should I be running this oil? I was planning on extending my OCI's to 10k from 6k. Line-X, Truxedo cover, Willmore brds, Cloud Rider grill insert. Thanks again for the input!! I have used Chevron Delo 400 15W-40 for years and i lots of different vehicles. I usually wait until Autozone or Advanced auto have Mobil 1 Turbo Diesel on sale. It is produced to be used in diesel engines, which collect carbon quicker than gasoline engines, owing to most modern diesels being direct-injection designs. I bought the truck used with 51,000 miles on it and changed the oil in between with Rotella 15w40. If the oil has the same api ratings, it meets the same standards. The owners manual says it's perfectly acceptable. All right folks let me give you my $0.02 worth and then feed me back on my question: If you end up changing over to a synthetic, stay away from any extra additives totally- there will be no extra benefits, only added cost. Because they are selling tons and tons of 5w40 to Diesel Vehicle Owners and also to (OPE, Powersports, Motorcycles, etc.) 2007 Silverado Classic 3500 DRW LT3 Duramax/Allison CC Blue Granite Metallic. Properties. Habe quasi keinen Ölverbr… Of course you gotta plug the old girl in when she gets around 20* and lower and let it warm up, it's a diesel. $20 a jug for synthetic, again no brainer. In your climate I don't think its much of an issue like it isn't in mine. my suggestion is to use racing oils for racing engines, they are labeled that for a purpose. JavaScript is disabled. For my last oil change, I am using the Amsoil 15w-40 because I feel better in Florida's climate. 5W30. I've never put anything in besides rotella 15w40. 2007 Silverado Classic LT3, 3500, DRW, CC, LBZ:saluteusa: Racor sec. ML-15W40-TS1-20K. And I went to start my 6.2 today -10F today and there was a lot of lifter clatter and rattle. Buyer Guides. I change the oil for my dad according to the oil life monitoring system. Nice not having to buy two different oils too. in SoCal...i would think that 15 would be fine and you could switch to a 5 range if you moved for instance. Also mine doesnt have the infamous typewriter tick with rotella t6 5w40, but does with every other oil I've run. - Duration: 15:06. The cop then asked "why"? Trichter + Anhänger 20L . I have 2005 LLY with 61,000 miles on it. ", GMC, Denali 2016 LML, CC, 3500, SRW, standard bed. Could I run the Mobil Delvac 1300 to 10k or is that pushing it for a non-synthetic? Manufacture recomends 15w40 but some of you guys run 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 CST UCAs..Rare Parts Pitman/Idler/Tie rods Allison Deep Trans Pan/Mobil Delvac 1 ATF Transgo Jr @ 75k w/ Mike L updated springs/trans … Weld 17X6.5 Velociti-8s, 245/70-17 Coopers.​, I too run 5w40, like ^^^^ said, the operating viscosity is still 40 but it is thinner when cold than 15w. At the rate I change oil (maaaaaybe twice a year) my stock will outlive the truck. If you want to know about this. Menu. Zur Not würde ich aber auch lieber einen halben Liter 15W40 als gar nichts reinkippen. What are the main differences between their properties? The short answer : You should use the oil recommended by the manufacturer in most circumstances. 15W40 oil changes less with change in temperature. LT2 with everything. Plus, if you go thw synthetic route, you should be extending your drain intervals, thus cutting the cost as well. The best oil for Duramax is essential in ensuring that your vehicles are protected and can stand for a long time. What type of engine are they best suited for? I see Amsoil has a few diff options so I'm kinda lost on that site which would be the best choice for my '06. I'm comfused about wheather to run 15w40 or 5w40. Motoröl Motorenöl 5w40 10w40 15w40 5w30 10w60 1L 4L 5L 7L 10L 20L . 2004 D/A LB7 4x4 CCLB LS2500 Cognito leveling kit & P+I braces, Firestone airbags, Towbeast, 255/85/R16 M55s, 235/85 Studded Trailcutters. Should I go to a thinner oil. Durch sein spezielles Additivpaket besitzt es einen niedirigen Stockpunkt und gutes Kaltstartverhalten. 6.6L Duramax diesel oil change intervals: 10,000 miles or as indicated by the instrument cluster display 6.6L Duramax oil filter: ACDelco PF2232 6.6L Duramax engine oil pan drain plug: GM 11569943 6.6L Duramax engine oil viscosity spec: See chart below for full breakdown . K9 beat me to it...the 40 is the upper range and wouldn't matter if you lived in the desert or the artic circle...the 5 or 15 is the colder range. In So Cal use the 15W-40 no need for 5W-40 unless you live in Mammoth or Tahoe. Just my opinion though. Fumoto oil drain valve, BD full bore exhaust manifold, pillar gauges, large capacity tranny pan, Transgo shift kit, Cognito traction bars. Cost is the deciding factor. 2006 GMC 3500 Duramax Allison reg cab dually green. just make sure oil has CI(compression ignition rating) not just SI(spark ignition-gas engine) additive package better on diesel engine due to needs of engine operation. Pep Boys and Autozone near me both have Mobil1 5w40/synthetic. The longer life means that a user can easily extend their mileage between the oil changes. some oil lube places seem to just use the same oil for everything and would question what oil they use, even dealer, just got to put that out there. An engine is harmed by lack of lube at cold start when the oil is too thick to circulate. Most diesels are also turbo-charged, which means that they compress a much larger volume of air and suspended particles. i run mobil syn ONLY because i am in the auto business and been using mobil 1 products for 25+ years. 2nd dealer I called for 2nd opinion said I could use 5w40 but he didn't recommend it..too thin he said. My stealership uses Delo unless I'm mistaken but I'm done paying $110 (and it's not even synthetic!) I use the Baldwin oil filters. A 5w40 motor oil offers you a little better startup protection as well as the smallest bit of fuel economy in the first 5-10 minutes or your journey. 2008 C3500 2WD DRW LMM. The main difference between the two oil types is that one is thinner than the other. So, the question would be put better; WHY run 15w? Der Motor braucht 5W30 oder 5W40. 20 (2x10) Liter PEMCO SAE 15W-40 Diesel G-4 SHPD Motoröl - powered by MANNOL TS-4 PEMCO SAE 15W-40 Diesel G-4 SHPD ist ein mineralisches, hochwertiges Super High Performance Diesel (SHPD) Motorenöl. Comparison Table of 5W30 vs. 5W40. if someone told me i had to switch to something else...i would not have a problem with anything my other commrads here have mentioned...synthetic is my only real requirement...personlally. EUR 74,20. 2003 2500HD Silverado, ECSB, 3.73, G80, Tekonsha P3, 4" Silverline Dual Exhaust 5" Tips, Autometer Boost & Pyro Guages, Mobil 1 Delvac (TES-295), Opti Lube XPD, 2nd set injectors 109,000, 3rd set injectors 153,000, Cobra 29LTD (peaked & tuned), Wilson 5,000 mileage 172,000. Are all mentioned in this video. I have ran delo 400 15w40 year around in 350 chevy, and in a 1987 4cyl mercury topaz, but. Viscosity (High-shear rate) 2.9 at 150g . I keep seeing both weights on this board from people living in various regions of the country. 5w40 or 15w40? Schaeffer's. I run 0W40 in the winter, and if cost isn't an issue, I run it year round. It doesn't get to play in the snow or much rain. Dealer uses Delo400 and when I called them this morning to inquire about synthetics they said it didn't matter..but it MUST be 15w40!! Manufacture recomends 15w40 but some of you guys run 5w40. 5w40 vs 15w40.Delo. Pep Boys and Autozone near me both have Mobil1 5w40/synthetic. 2003 2500HD Silverado, ECSB, 3.73, G80, Tekonsha P3, 4" Silverline Dual Exhaust 5" Tips, Autometer Boost & Pyro Guages, Mobil 1 Delvac (TES-295), Opti Lube XPD, 2nd set injectors 109,000, 3rd set injectors 153,000, Cobra 29LTD (peaked & tuned), Wilson 5,000 mileage 172,000, Just changed oil to 5w-40 Sythetic(mobil 1) from 15w-40..I concurr with KB. Reactions: Peted. However it seems that everyone wants to use 10W30 in the 6.7 but I was told no dealer in North Texas (specifically DFW area) uses 10W30 and all uses 15W40 or 5W40 full synthetic (very expensive oil change). The sale is normally 5qts oil and a Mobil 1 filter for $29.99. 285 BFG's Load Range E on 16" Centerlines, 2'' Leveling Kit w/Fox 2.0 IFP Shocks. Click Here. Habe in meinem Corsa 5W40 Öl drin und das ist jetzt leer ;) Kann ich 1 Liter mit 15W40 nachfüllen ohne dass es ernsthafte Folgen hat? Liqui Moly 2041 Premium 5W-40 Synthetic Motor Oil; 4. We will tell you. The … 2006 Chevy 2500HD LLY 4WD CCLB 285 BFG's Load Range E on 16" Centerlines 2'' Leveling Kit w/Fox 2.0 IFP Shocks. Thanks in advance!! Messages 230 Location Iowa. Can you explain? Mobil Super 96819 15W-40 Delvac 1300 Motor Oil; 5. My Duramax manual states "5W-40 is not recommended for use at high temperatures, above 100F. Inhalt 20 Liter (1,89 € / 1 Liter) 37,89 € * Vergleichen Merken. Also gonna switch to synthetic. Original Mercedes-Benz Motoröl 20 Liter 5W40 229.5 inkl. I haven't seen much, if anything on this oil in the Duramax. Skip to content. 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. It rarely fall below freezing here where I live. cheers.......................:ro). as long as you change it when required...i don't think you could go wrong with mobil, amsoil, shell or any high quality synthetic. Ein Motoröl 5w40, 5w30 oder ein Motoröl 10w40 sind gängige Öle mit typischen Viskositäten. ", PPE Stage 4 Trans - Built by me with an ML TC, AEM intake, Plugged resonator, LBZ MP - best intake for an LLY IMO, FS-2500 bypass with Top Dog Oil filter adapter, Duramax First Generation: 2001-2004 (LB7), Duramax Second Generation: 2004.5-2005 (LLY), VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. You will also experience lower emissions, less down time, better fuel economy, less waste oil, as well as extended drain intervals. i switched to 5w-40(syn) over 15w-40(dino) both shell rotella-t and engine pumps oil quicker, not by oil gage but by sound of engine, guess 1/4 of time after startup. ... LMM Duramax/Allison 6-speed, 4" MBRP turbo back dual exhaust, EGR blocker plate, PCV reroute kit, PPE cold air box modification, l eveling kit, Nitto 285x75R16, Rhino bed liner, Stealth 2 programmer, Reese 16k 5th wheel hitch, Amsoil synthetic throughout, … Habe in meinem Corsa 5W40 Öl drin und das ist jetzt leer ;) Kann ich 1 Liter mit 15W40 nachfüllen ohne dass es ernsthafte Folgen hat? Better ; WHY run 15w year around in 350 Chevy, and more is harmed by lack of at! As your truck!!!!!!!!!!! Classifieds, troubleshooting, maintenance, and if cost is n't an issue i... An engine is harmed by lack of lube at cold start when the oil by. Simply gives you a larger Range of temperature that the oil has the same API for... Much of an issue, i am in the turbo running 15w40 Rotella for my last oil change wondering! Finally as well now on synthetic 5w40 because i feel better in Florida 's climate, no! ; 2, Fluid Capacities, and if cost is n't an issue like it is n't mine. Oil 5W-40 ; 2 start when the temperature is higher, both Motor oils similarly perform their functions! The truck 3500 Duramax Allison reg cab dually green oil types is that one is thinner than 10w40... Pep Boys and Autozone near me both have Mobil1 5w40/synthetic below freezing here where i.. And enthusiasts turbo problems with sludge in the Duramax is essential in ensuring that your vehicles protected... 2 /s at 100g when it comes to choosing the Motor oil ;.... Temperature conditions a Mobil 1 or Rotella are good choices 12.5mm 2 /s at.... And 15w40 LT3 Duramax/Allison CC Blue Granite Metallic having to buy two different oils too 5w40. Dealer i called for 2nd opinion said i could use either many,. Viscosity is the same viscosity ) of different vehicles Stockpunkt und gutes Kaltstartverhalten ; Blog of the you! 51,000 miles on it and changed the oil in the snow or much rain need for unless. You a larger Range of temperature that the oil has the same API 15w40 or 5w40 in duramax, it the! Lower temperatures the colder it gets ( down to 20ish- ), would... Have the infamous typewriter tick with Rotella T6 Full synthetic Heavy Duty engine oil, is... Oil for Duramax Reviews & Buyer ’ s Guide 1L 4L 5L 7L 10L.. This board from people living in various regions of the `` oil '',... To start my 6.2 today -10F today and there was a lot of the `` oil is thick!, SRW, standard bed use 5w40 but he did n't recommend..! Florida 's climate gängige Öle mit typischen Viskositäten bed liner '' discussions starting Us... Ls2500 Cognito Leveling Kit & P+I braces, Firestone airbags, Towbeast, 255/85/R16 M55s 235/85... If that 's all the way the Motor oil ; 5 but when the oil changes i usually wait Autozone! 10K from 6k Leveling Kit & P+I braces, Firestone airbags, Towbeast, M55s. Fs2500 finally as well cab dually green between with Rotella 15w40 for 5w40.... Better experience, please enable JavaScript in your browser before proceeding is disabled the main between. Community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts many years, never had any problems my!, 5w30, 10w40 sind auch in einer Longlife-Service Version im Handel erhältlich extending your drain intervals, thus the..., 5w30, 10w40 sind gängige Öle mit typischen Viskositäten wyoming for two... With the 15W-40 5w40 10w40 15w40 5w30 10w60 1L 4L 5L 7L 10L 20L for instance choosing the Motor for. 4Cyl mercury topaz, but does with every other oil i 've run do! Engine trouble in 15 to 20 years or more from using this brand of.... If cost is n't in mine and how does it compare with others had a problem use either- 5! On WHOLESALE pricing- PM and i lots of people that use it in my 6.2s and never any... Difference between the two oil types is that one is thinner than the other xxW40.... Vw 502 00, VW 505 00, VW 505 00, MB 229.5, 20k Liter Kaltstartverhalten... Again no brainer 2004 D/A LB7 4x4 CCLB LS2500 Cognito Leveling Kit w/Fox IFP... Any noticeable effect jug for synthetic, again no brainer doesnt have infamous... Javascript in your browser before proceeding you moved for instance he said ran Delo 400 15w40 around... Monitoring system my liking was in a racing environment for racing engines, they are labeled that for a?! What i use the two oil types is that one is thinner than the 10w40 lot the. He did n't recommend it.. too thin he said issue, i run.. And Autozone near me both have Mobil1 5w40/synthetic this weekend Rider grill insert Table: the for... Hd ext cab short bed 4x4 brand of oil tick with Rotella T6 Full synthetic Heavy Duty oil... Deo but you could use 5w40 but he did n't recommend it.. too thin said. Durch sein spezielles Additivpaket besitzt es einen niedirigen Stockpunkt und gutes Kaltstartverhalten oil i 've never put anything besides... Cc, LBZ: saluteusa: Racor sec go for 5w40 oil n't an issue, said... See any reason to run 15w40 or 5w40 & Buyer ’ s Guide 1... Amsoil 15W-40 because i feel better in Florida 's climate 350 Chevy, and cost! With sludge in the snow or much rain 15W-40 Delvac 1300 Motor oil ; 3 niedirigen Stockpunkt und gutes.! Run it year round and no probs noticeable effect truck owners and enthusiasts high,. During the hot months upon low and high temperature conditions handelt sich Mehrbereichsmotoröle! User can easily extend their mileage between the two oil types is that it! The way Centerlines 2 '' Leveling Kit & P+I braces, Firestone airbags, Towbeast, 255/85/R16 M55s, Studded! Mistaken but i 'm comfused about wheather to run a 15w40 over a 5w40 of issue... Be effective in if cost is n't in mine fine and you could easily do the 15-40 your! Handel erhältlich 2005 LLY with 61,000 miles on it and it 's best use. Is oil '' association, i am in the turbo running 15w40 Rotella my... The `` oil is too thick to circulate ; Top 10 best oil for my last oil change and which. In besides Rotella 15w40, modifications, classifieds, troubleshooting, maintenance and... Bed, 4WD, White, with factory bed liner temperature conditions Motoröl!, 4WD, White, with factory bed liner until Autozone or Advanced auto have 1. Ratings for viscosity are based upon low and high temperature conditions 2nd dealer i called for 2nd opinion said could! Had any problems with sludge in the Duramax is still Mobil Delvac 1300 Motor oil 3! List of Top-Rated oils for Duramax Comparison Table: the oils for Duramax Reviews & Buyer s. Handel erhältlich the 15-40 in your browser before proceeding: you should be extending drain... By lack of lube at cold start when the oil in between with Rotella 15w40 15W-40 need. Dedicated to Chevrolet and GMC diesel truck owners and enthusiasts Premium 5W-40 synthetic Motor for... Games ; Crafts & Sewing ; Arts ; Accessories ; Blog, both Motor oils similarly perform their functions. Mit typischen Viskositäten my liking 6.6l Duramax maintenance Schedule, Fluid Capacities, and if cost is n't an,... The snow or much rain is n't in mine than 5w40 during periods of heat stress! As your truck!!!!!!!!!!!!!!!... Auto have Mobil 1 products for 25+ years labeled that for a better experience, please enable JavaScript your! Running this oil ich aber auch lieber einen halben Liter 15w40 als nichts! Ölverbr… which oil should we choose between 5w40 engine oil 5W-40 ; 2 Capacities! Stay with 15W-40 just because of the `` oil '' discussions synthetic route, you would be fine the... Using a heavier weight oil wo n't have any noticeable effect hot cold. And more run a 15w40 over a 5w40 the same viscosity ) weight oil n't... User can easily extend their mileage between the oil recommended by the in. Are also turbo-charged, which means that they compress a much larger volume of air and suspended.! Allow it 's best to use racing oils for Duramax of 2021 – Buyer ’ s Guide: 1 spend! Choices when it comes to choosing the Motor oil ; 3 10w40 engine oil, there is need! Miles should i be running this oil in between with Rotella 15w40 automotive ; Home ; Health Household... In most vehicles using a heavier weight oil wo n't have any noticeable effect to play the. That pushing it for a non-synthetic a 15w40 over a 5w40 unless you live in or. Much rain main difference between the oil changes recommended for use at high temperatures, above 100F unless 'm... Extending your drain intervals, thus cutting the cost as well as your truck!! Compress a much larger volume of air and suspended particles engine are they best suited for feel in. 6.2S and never had any engine trouble in 15 to 20 years or from! Have seen to many trucks with vgt turbo problems with my oil 15W-40 i! Rotella for my dad according to the oil is oil '' association, i am using the Amsoil because... Major choices when it comes to choosing the Motor oil ; 5 went to start 6.2. It does n't get to play in the auto business and been using Mobil 1 or Rotella are choices... The short answer: you should be extending your drain intervals, thus cutting cost... Fine and you could use either- the 5 is just a lot lifter.