When you wait too long to change your oil, then the viscosity of the oil is going to change and then you’ve got a problem. At this point, it’s no longer lubricating your engine as efficiently, and you’re going to have increased friction on things like bearings and pistons.

To say this is inefficient would be an understatement – This kind of friction can cause heavy damage in very little time, so it’s important to get your oil changed regularly.