When I worked in a GM (Pontiac) shop, a ditzy broad had her Grand Am towed in for 'failure to start", which should have read 'failure to turn over after it died on me'. Anyway....she never had an oil change in the first 22,000 miles since the car was purchased new. I guess it just doesn't occur to some people that engines even contain oil at all. The engine was siezed, as it had gotten cold outside and the 'oil' (chocolate pudding) stiffened up and didn't pump. Unbelievably, GM warrantied the engine. I was floored. People like this should ride a bike, if they can manage to maintain it.