See also:

Materials Added To Engine Oil
Do not add any supplemental additives, other than leak detection dyes, to your engine oil. Engine oil is an engineered product and its performance may be impaired by supplemental additives. ...

Electronic Serial Number/Sirius Identification Number (ESN/SID)
Please have the following information available when calling: 1. The Electronic Serial Number/Sirius Identification Number (ESN/SID). 2. Your Vehicle Identification Number. To access the ESN/SI ...

Checking Oil Level
To assure proper engine lubrication, the engine oil must be maintained at the correct level. Check the oil level at regular intervals, such as every fuel stop. The best time to check the engine ...