What information does the API symbol or donut provide? a. Engine oil performance category (S=Gasoline Engines and C=Heavy Duty Diesel Engines) b. SAE viscosity grade c. Resource conserving (specifies oil meets fuel economy requirements) d. All of the above

Answer is:

A). Engine oil performance category (S=Gasoline Engines and C=Heavy Duty Diesel Engines)

Explanation:

API's Engine Oil Licensing and Certification System (EOLCS) is a voluntary licensing and certification program that authorizes engine oil marketers that meet specified requirements to use the API Engine Oil Quality Marks. So, that's why you have to engine oil performance category is correct answer.