See also:

Engine oil
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SENSE AND STYLE
Family Friendly (Not Really, Fair, Great, Excellent): Fair Fun-Factor (None, Some, Good Times, Groove-On): None ...

Readiness for Inspection/Maintenance (I/M) testing
Some state/provincial and local governments may have Inspection/Maintenance (I/M) programs to inspect the emission control equipment on your vehicle. Failure to pass this inspection could prevent ...