I see that 15W-40 oil is suggested for this engine. This particular engine requires a whopping 10 quarts of oil. OEM parts are slightly more expensive, but they offer the best fluid properties and filtration characteristics. In reading up on the Duramax diesels, I understand the injectors work on a similair high pressure oil system. When purchasing parts for your Duramax, be cautious with model years where an engine was phased in/out as the incoming engine may have parts that are not interchangeable with the outgoing engine. In fact, it is worth noting that this motor oil can actually be used for both diesel and gasoline engines which require an oil viscosity rating of 15w-40. This is a Mobil oil, which is all I need to say. After some research the engine was designed to run on a 20 and the use of … This particular engine oil is the only oil exclusively endorsed by Cummins, although it also works for Duramax engines. Shell Rotella T6 5W-40 Full Synthetic Heavy Duty Engine Oil. Sooner or later, the injectors will need to be replaced (a $3,000 to $4,000 expense depending on the shop performing the work). 6.6L Duramax diesel oil change intervals: 10,000 miles or as indicated by the instrument cluster display • Shell Rotella T6 5W-40 features a clean formula which helps prevents buildups and deposits from forming. Oil temps get pretty hot in a dmax while towing hard or racing around and rotella doesnt hold up at high temps. We highly recommend Amsoil's line of full synthetic, diesel specific engine oils for all Duramax diesels. The 6.6L V8 Duramax LML is an engine that was produced by General Motors for full-size heavy-duty (HD) pickup trucks. Ultra Synthetic is the filter… This particular engine oil can be used by gas and diesel engines alike, as well as with vehicles that require oil with a viscosity rating of 5w-40. All parts in the info box below! Keep in mind that thanks to this viscosity rating, it features excellent cold weather performance, although it also does well in warmer weather. Oil and filter changes are recommended every 7,500 miles for normal duty usage. Yes, these engines produce a whole lot of torque and horsepower. While the first models of GM trucks to offer the Duramax engine/Allison transmission combo are aging, clean versions can still command a pretty penny. It is made with a special formulation which helps to seal old gaskets, to ensure that there are no oil leaks. DuramaxHub.com is not affiliated with or endorsed by DMAX, Isuzu, or any division of General Motors. 2.8L LWN Duramax Parts List – Fluids, Filters, and Engine Oil. One recommended product is Castro’s 03084 Edge 5W-30 … In terms of wear and corrosion protection, Shell Rotella T6 5W-40 Heavy Duty Engine Oil is definitely a top choice to go with. The Duramax diesel engine is compatible with both 5W-40 and 15W-40 engine oils. We highly recommend Amsoil Heavy Duty 15W-40 full synthetic engine oil for all Duramax diesel applications, or Amsoil Heavy Duty 5W-40 full synthetic engine oil for cold weather operation. Engines using Selective Catalytic Reduction (SCR) to reduce NOx in the exhaust system. This stuff is specifically designed for engines that undergo a lot of stress and pressure, for really heavy duty engines that need a whole lot of wear and friction protection. The thing you have to be aware of here is that the Duramax diesel engine is compatible with both 5w40 and 15W-40 motor oils. 2.5 Gal - 55 Gal - 275Gal - 330 Gal Let’s take a closer look at the variety of engines oils you have to choose from to keep that Duramax Diesel engine purring smoothly. Applicable model years: 2001 - 2016 Chevrolet Silverado/GMC Sierra with 6.6L Duramax diesel Diesel engines need a lot of oil with frequent oil changes. Motorcraft FL2016 Oil Filter: The Motorcraft FL2016 has the best protection against engine wear by … Some of the most highly recommended oil brand names to use with the Duramax engine include Amsoil, Shell Rotella, Royal Purple, Valvoline, Mobil 1, and Liqui Moly. Copyright © 2009 - All told, there are six different iterations of the Duramax: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the present day. We highly recommend Amsoil Heavy Duty 15W-40 full synthetic engine oil for all Duramax diesel applications, or Amsoil Heavy Duty 5W-40 full synthetic engine oil for cold weather operation. Shell-Rotella-T6-Full-Synthetic-Heavy-Duty-Engine-Oil-5W-40, Shell Rotella T6 5W-40 Heavy Duty Engine Oil, AmazonBasics High Milegage 5W-40 Motor Oil, Valvoline Premium Blue 8600 ES SAE 15W-40 Oil, Ideal for moderate temperatures, vehicles between 0 and 150,000 miles, and for maintaining engine cleanliness. It actually has far better deposit prevention abilities than the set industry standard. Before you go out and buy a vehicle with a Duramax engine, or the oil for it, let’s take a quick look at some of the most important things which you need to know. For this reason it is recommended to not use rotella on Ford Powerchokes, the oil operated injectors and hpop create alot of oil heat and the rotella boils and cokes in the HPOP and injectors causing failures. 6.6L Duramax Maintenance Schedule, Fluid Capacities, and Service Part Numbers, 6.6L Duramax Turbo Disassembly & Cleaning Guide, 6.6L Duramax Fuel Filter Replacement & Fuel-Water Separator Drain, 6.6L Duramax VGT Solenoid Replacement Procedures, Amsoil Signature Series Max-duty diesel oil, Amsoil Heavy Duty 15W-40 full synthetic engine oil, Amsoil Heavy Duty 5W-40 full synthetic engine oil. But other than that, it also helps improve fuel economy deposits, plus it also helps fuel! 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