See also:

Guarding against exhaust fumes
WARNING: If you smell exhaust fumes inside your vehicle, have your dealer inspect your vehicle immediately. Do not drive if you smell exhaust fumes. Carbon monoxide is present in exhaust fumes. ...

What you should know about automotive fuels
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Engine oil and filter recommendations
Look for this certification trademark. Use SAE 5W-20 engine oil Only use oils certified for gasoline engines by the American Petroleum Institute (API). An oil with this trademark symbol confor ...