Originally Posted by
cxwrench
If the engine in your car hasn't blown up why change the oil?
Ever heard of 'preventative' maintenance? Service instead of repair?
That’s the silliest comparison I’ve ever heard, unless your business relies on selling cable housing (which for all I know it may, so fair enough.). Of course I change my oil and timing belt and do other service stuff on my car, but I don’t change the piston rings just because the car is 20 years old (really) and they’ve never been changed.