What oil is recommended for a 2018 6.6 Duramax?
For a 2018 6.6 Duramax diesel engine, the recommended oil is 5W-40 synthetic oil. This type of oil provides the optimal lubrication and protection for the Duramax engine, which is known for its power and durability.
Duramax Diesel Engine Overview
The 6.6-liter Duramax diesel engine was introduced by General Motors in 2001 and has been a popular choice for heavy-duty trucks and SUVs. The 2018 model year saw the latest iteration of this engine, which features advanced technologies like a variable-geometry turbocharger and high-pressure common-rail fuel injection system. These improvements help the Duramax deliver impressive power and fuel efficiency.
Recommended Oil Specifications
For the 2018 6.6 Duramax diesel engine, GM recommends using a 5W-40 synthetic oil that meets the following specifications:
- API CK-4 or FA-4 service classification
- ACEA E6 or E9 performance standard
- Meets GM dexos2™ licensing and oil service requirements
Using the recommended 5W-40 synthetic oil helps ensure optimal engine performance, fuel efficiency, and protection against wear and tear. This oil viscosity provides the necessary lubrication across a wide range of operating temperatures, from cold starts to high-load conditions.
Oil Change Intervals
GM recommends changing the oil and filter in a 2018 Duramax diesel engine every 7,500 miles or 12 months, whichever comes first. However, it's important to consult the owner's manual for the specific oil change interval, as it may vary depending on driving conditions and usage.
Regularly changing the engine oil and using the recommended 5W-40 synthetic oil will help keep your 2018 Duramax diesel engine running at its best, providing reliable power and performance for years to come.
How many miles is Duramax full synthetic oil good for?
If your vehicle's manufacturer recommends a mileage interval greater than 7500 miles, you will need to change your vehicle's motor oil using DuraMAX synthetic motor oil at least one time per year and as often as recommended by the vehicle manufacturer (or before every 10,000 miles, whichever occurs first).
What kind of oil does a 2018 6.6 Duramax take?
15W-40 (Above -18°C) - SAE 15W-40 is preferred. Capacity: 10 quarts (with filter). After refill check oil level.
What synthetic oil does GM recommend?
dexos®1 Gen 2 | GM.
What happens if I use 20w50 instead of 15w40?
What is the difference between putting in 15w40 and 20w50 oil? From the viewpoint of behavior when cold, oils with a lower SAE before the W will behave better at low temperatures. In other words, a lubricant with SAE 15W-40 will behave better when cold than a lubricant with SAE 20W-50.
What brand oil does GM use in Duramax?
XLT Euro Advanced Synthetic Motor Oil.
Can you use 5w40 instead of 15W40 Duramax?
As a result, they are much less prone to being too thick in the extreme cold or thinning out in extreme heat. Therefore, a good 5W-40 will provide flawless protection all year-round. That is why a 5W-40 can now safely replace 15W-40 for year-round use.
How often do you change oil in a 6.6 Duramax diesel?
10,000 miles
Duramax 6.6-Liter Maintenance Schedule
Oil and filter change at 10,000 miles or when you see the “Change engine oil” message.
What is Duramax full synthetic oil?
DuraMAX® SYNTHETIC MOTORS OILS are full synthetic passenger car and light-duty truck engine oils formulated with premium synthetic base oils and next generation performance additives designed to improve fuel economy, control sludge and oxidation, and inhibit Low Speed Pre Ignition (LSPI).
Which is better, 5W40 or 15w40?
Both will have a viscosity of a 40 grade. That cannot be said for both oils during the dead of winter. The 5w-40 will have a lower viscosity when the engine is started than the 15w-40; consequently the 5w-40 will start easier and lubricate quicker in the cold than the 15w-40.
What oil does the 2024 6.6 Duramax take?
Factory fill is Delvac 15W40.
