Question

What information does the API symbol or donut provide?

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

SAE viscosity grade

Resource conserving (specifies oil meets fuel economy requirements)

All of the above

Answer 1

The API symbol or donut provides all of the above information:

1. **Engine oil performance category**: Indicates whether the oil is suitable for gasoline engines (S category) or heavy-duty diesel engines (C category).
2. **SAE viscosity grade**: Indicates the viscosity of the oil, which affects its flow and performance at different temperatures.
3. **Resource conserving**: Indicates whether the oil meets certain fuel economy requirements.

So, the correct answer is **All of the above**.