Re: Oil change light: Based on miles or viscosity?
You have no idea how well I maintain my cars or how often I have changed timing belts, because I had one snap on me 17 years ago. So yes, I do change them before their life cycle. But back to the discussion. One of my coworkers had a Matrix that the engine went bad at about 30000 miles. She went to the dealer and they said show us your oil change records. She didn't have them, so they said they wouldn't honor the warranty. She took it to another car dealer and traded it. No oil analysis, and yes I know what it is. It is performed on airplanes all of the time, I just think it is a waste of money for a car.
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