Which piece of information is NOT included in an API service symbol donut?

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Multiple Choice

Which piece of information is NOT included in an API service symbol donut?

Understanding what the API service symbol donut shows is about the lubricant’s specs, not the vehicle’s chassis. The donut communicates the oil’s viscosity (how thick it is at operating temperature), the API service category (the performance rating the oil meets), and whether it is energy-conserving (fuel economy capability). Vehicle weight rating, which is a vehicle-wide specification unrelated to oil performance, isn’t part of this symbol. So the piece of information not included is the vehicle weight rating.

Understanding what the API service symbol donut shows is about the lubricant’s specs, not the vehicle’s chassis. The donut communicates the oil’s viscosity (how thick it is at operating temperature), the API service category (the performance rating the oil meets), and whether it is energy-conserving (fuel economy capability). Vehicle weight rating, which is a vehicle-wide specification unrelated to oil performance, isn’t part of this symbol. So the piece of information not included is the vehicle weight rating.

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