Here in the United States, the market for automotive engine oil is both massive and competitive — offering drivers a mix of both international giants and homegrown brands. American manufacturing ...

Some of the best motor oil brands have been refining their products ... oil has been certified for use in gasoline engines by the American Petroleum Institute. On the back, the API provides ...

Given all the options for motor oil options ... Always choose an oil from a brand that displays the starburst symbol that indicates the oil has been tested by the American Petroleum Institute ...

Some brands of motor oil also promise more miles per oil change ... What experts say The American Automobile Association, aka AAA, has this to say about oil: "How often you should change the ...

Valvoline’s North American product sales are divided equally ... Valvoline’s management cites internal survey data indicating that motor oil brand is meaningful to 90% of motorists who change ...

However, the motor oil does use leading terms, such as stating “10•40” in large print. It wouldn’t be hard to assume that this brand claims to meet the SAE 10W-40 viscosity grade.

In the 1970s, the American Energy Crisis ... In general, yes, synthetic motor oil provides longer intervals between oil changes, but it depends on the brand of oil you use. Certain brands ...