Jimmylee1000

Even at 500,000 miles (insanely high, even for a Toyota), it's still only about 2 years equivalent operating time. Trust me when I tell you that we had very severe services in the oil refinery where bearings, seals, belts, sheaves, and other things went much longer than that with no problem. My point is this: You said there is no such thing as lifetime on anything. But it is absolutely possible, and credible, to have some components last the lifetime of the car with zero maintenance. So when they tell me that a bearing or fluid doesn't need changed, I believe them. The operating time is low, and the severity of service is nothing compared to that in an oil refinery.

Lenore, lifetime parts and lubrication certainly do exist. If you consider the life a car to be 300,000 miles, and you assume an average speed of 30 MPH over the life of the car, that's only 10,000 operating hours. That's 416 operating days. That's only 1.15 years. I worked an an engineer in a refinery where we ran everything 24/7. I can assure you we had belts, chains, bearings, that EASILY ran 1.15 years with zero attention. We had things run five times that with zero maintenance.