Our answer: Yes, you can certainly use 5W-40 in winter (and summer) in your Duramax. If the seal is compromised, replace the drain plug o-ring or install a new drain plug. Here we have a special type of motor oil, one designed for both gas and diesel engines, which is already a big bonus. We also recommend changing the drain plug every few oil changes as the seal tends to degrade with age. At the same time, it does actually perform quite well in warmer weather as well. Ambient temperature > 0° F (preferred viscosity within temp range), Ambient temperature < 0° F (acceptable for all temps, required if temperature < 0° F), Listed as acceptable for certain model years - not preferred nor advised under any conditions. Sooner or later, the injectors will need to be replaced (a $3,000 to $4,000 expense depending on the shop performing the work). We recommend using OEM GM or ACDelco Fluids for everything. People from industrial sectors and automotive rely on it for the maintenance of their diesel-powered engine. All of these things come together to help keep your engine running smoothly, and it helps improve fuel economy as well. Keep in mind that this is high mileage motor oil. Do not break the drain plug loose using an open end wrench. Top 6 Best Synthetic Oil for Diesel Engines. 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. Warranty Info Installer Locator. • Clean any residual oil around the drain plug so that leaks can be easily detected once oil is added. This engine oil has the ability to resist thickening in extreme cold, which is essential for cold weather performance. 2.5 Gal - 55 Gal - 275Gal - 330 Gal What you need to know about Duramax engines is that they are heavy duty diesel engines, and they do need the right kind of oil. These are true beasts of engines designed for power. DuramaxHub.com, all rights reserved. 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. It works with pickup trucks, semi trucks, transports, and for heavy machinery too. Drain plug head sizes will vary. High Mileage. There is no reason nor excuse not to use a full synthetic motor oil. • This oil features excellent wear and corrosion protection, which in turn helps to increase the lifespan of the engine, and it helps improve fuel economy as well. It is highly recommended by a number of users. The best way to assure your LB7 Duramax gets the right fluids and oil is to stick with OEM recommended fluids. Let’s go over some of the more cost effective options. Click here to skip to our recommended pick! If you continue to use this site we will assume that you are happy with it. On the LBZ, and all Duramax engines for that matter, the impeller inside the water pump is made of plastic. Motorcraft FL2016 Oil Filter: The Motorcraft FL2016 has the best protection against engine wear by … 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. The official recommendation here is that for normal weather conditions, motor oil with a viscosity rating of 15W-40 should be used. Rotella T4/T5/T6 will work well. It actually has far better deposit prevention abilities than the set industry standard. As noted above, Liqui Moly 2041 Premium 5W-40 Motor Oil is an ideal choice to go with for cold weather applications. When it comes to the best motor oil for Duramax diesel engines, if you need something heavy duty, this Mobil 1 112786 15W-40 Delvac 1300 Super Motor Oil might be your best bet. After some research the engine was designed to run on a 20 and the use of … For 2020 Silverado/Sierra 1500 Duramax Engines Part# DMAX-ACD-LM2KIT Oil and filter change kit for your 2020 3.0L LM2 Duramax engine. 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. Can I use 5W-40 in the winter? Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates. FRAM Ultra Synthetic XG3614, 20K Mile Change Interval Spin-On Oil Filter with SureGrip. The Duramax diesel engine is compatible with both 5W-40 and 15W-40 engine oils. 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. 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. Recommended DEF by Duramax manufacture for Diesel Engine Trucks. This stuff comes loaded with so called triple dispersant chemistry, which means that soot does not thicken, plus it also features very strong shear stability. GM Dexos 1 Designed with gasoline engines in mind GM Dexos 1 replaces the GM-LL-A-025, GM6094M and GM4718M specifications. They also believe that this engine oil cooler assembly significantly improves the operational effectiveness of your engine. This particular engine requires a whopping 10 quarts of oil. Copyright © 2009 - If driving under the best conditions, the engine Oil Life System might not indicate the need for vehicle service for more than a year. Note that an SAE 15W-40 motor oil is recommended for all vehicles operating in ambient temperatures greater than 0° F, and SAE 5W-40 is required when operating in temperatures lower than 0° F. SAE 10W-30 is listed as an acceptable alternative for certain model year trucks, however it is not advised nor recommended. Oil Warranty. 6.6L Duramax Maintenance Schedule Service Intervals, Part Numbers, & Fluid Capacities for all 6.6L Duramax Engines, 2001 - 2016 Model Years. Very easy. Oil and filter changes are recommended every 7,500 miles for normal duty usage. However, for cold weather conditions, for excellent cold weather performance, you may also use 5W-40 engine oil. AC Delco DexosD 0w-20 Light Duty Diesel Engine Oil 19370138, 10-9277 and AC Delco PF66, 55495105, 19391402 Oil Filter Oil Change Kit for 3.0l Duramax Diesel LM2 4.4 out of 5 stars 9 6% off Best Selling Diesel Exhaust Fluid (DEF) Duramax. Exposure to extreme pressure, heat, and contaminants such as exhaust soot and diesel fuel degrade its chemical and mechanical properties, necessitating frequent oil changes. year=now.getFullYear(); 2. Not all fluids are created equal though. Keep in mind that thanks to this viscosity rating, it features excellent cold weather performance, although it also does well in warmer weather. If the filter is stubborn, use an oil filter wrench or wrap a piece of sandpaper around the circumference of the filter to prevent your hand from slipping. 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. This particular oil is designed for use with all sorts of diesel engines. 2. There are a number of reasons for this, so let’s take a quick look. One recommended product is Castro’s 03084 Edge 5W-30 … Recent buyers report the premium quality and features of this product. Best Oil For Duramax. Diesel engines need a lot of oil with frequent oil changes. It helps prevent the buildup of deposits on the pistons, and it has a very long service life too. In terms of performing an oil change, the official recommendation is that the Duramax engine requires the oil to be changed every 7,500 miles. Applicable model years: 2001 - 2016 Chevrolet Silverado/GMC Sierra with 6.6L Duramax diesel Delo doesn't have a good additive package for high pressure systems and foams up due to the higher pressure. • Since the oil filter mounted horizontally in this application, it is impractical to fill the oil filter with engine oil prior to installation; it will simply pour out once the oil filter is tipped. Although there are some official recommendations, as long as you get the specs and the viscosity right, the brand name is more or less irrelevant. Car Fluids Expert is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. This particular oil also excels at having a very low consumption rate, plus it also helps improve fuel economy. 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. If the canister is slick, use a piece of sandpaper wrapped around the circumference to gain traction. Here’s what I found out when I googled Best Oil For Duramax. GM General Motors Oil Specifications GM Dexos Motor Oil Specifications. This oil filter is made to meet expectations for form, fit, and function. Thanks to its viscosity rating, this oil does work well in most weather conditions, although it doesn’t perform too well in extreme cold. Duramax LBZ Water Pump Failure. Liqui Moly 2041 Premium 5W-40 Synthetic Motor Oil is designed to help provide a maximum amount of wear and friction protection for a very smooth running motor. If you are one of … This is the Mobil Delvac™ 1300 Super 15W-40 advanced diesel engine oil. In reading up on the Duramax diesels, I understand the injectors work on a similair high pressure oil system. 6.6L Duramax engine oil pan drain plug: GM 11569943 Due to its viscosity rating of 5W-40, it performs extremely well in cold temperatures as it resists thickening in the cold. This particular engine oil is the only oil exclusively endorsed by Cummins, although it also works for Duramax engines. DuraMAX Motor Oil is backed by a 10-year, up to 300,000-mile Engine Protection Warranty, covering more than 15 engine parts. Performance. • Verify that the oil filter gasket did not stick to the oil filter mount and thoroughly clean the mounting surface with a clean, lint free rag. 6.6L Duramax diesel oil change intervals: 10,000 miles or as indicated by the instrument cluster display • Add 10 quarts of new engine oil through the oil fill tube located at the front, center of the engine compartment. Replace the drain plug and oil filter: the Motorcraft FL2016 oil filter made... 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At some of the most highly recommended products below issue is addressed, the LB7 extremely! Reduction ( SCR ) to reduce NOx in the cold you continue to use this we... Exhaust after treatment devices installed thickening in extreme cold, which helps to seal old gaskets to! Reasons for this, so let ’ s take a closer look at some of engine. Filters, and can help to keep engines clean + improve fuel economy 20K Mile change Spin-On! Ideal for vehicles which have Exhaust after treatment devices installed and coolant inside the water on... Some specific models may allow you to go with for cold weather performance, you may also use 5W-40 oil!