What Type of Engine Oil Goes in a Diesel Engine?


Quick Answer

Diesel engines require a high viscosity oil that is able to withstand a significant amount of force. Most diesel engines suggest using 15W-40, as a result of having a heavier and thicker consistency. Diesel engines undergo combustion at a higher compression ratio, which requires a better performing type of oil.

Continue Reading

Full Answer

Diesels engines, particularly newer diesel engines, also use synthetic oils such as 5W-40. This type of oil sometimes provides better results when compared to 15W-40 oil. Although synthetic oils cost more than other types of oil, they have the advantage of offering increased protection against wear and tear on the engine.

Learn more about Engine Oil

Related Questions