An oil change is a great starter task for anyone learning about car maintenance, but picking the right oil to is just as important as technique.

Always choose an oil from a brand that displays the starburst symbol ... These letters are based on a group of laboratory and engine tests that determine the oil’s ability to protect the engine ...

“Do not rely on hearsay or opinion about how a specific brand of oil supports the engine warranty.” There is also a myth that heavier viscosity engine oils are necessary to protect large ...

Diesel engine oil typically possesses a higher level of viscosity, which means it pumps at a much lower temperature and takes more heat to start flowing cleanly.

In the past, there have been similar shifts in preferred engine oil viscosity grades. An example is the transition in heavy duty diesel engine oils in the 1980s from monograde viscosity SAE 30 and ...