Fact: Jon is really good at changing his oil

No, its the opposite!

It'd be true if being really good at changing oil included: dripping it all over your face, loosing washers, not tightening bolts enough, losing said bolt on the highway, draining all your oil at 65mph and making your car smoke. And trashing the engine.

At least friendly tow truck drivers, tom, dave, and a cave man were all ready and willing to help.

Actually I feel bad for Jon. But nobody tell him.