The entire reason you're probably taking your car to a garage for an oil change is because you don't know anything about car maintenance. So why would you leave your car with somebody who has the exact same amount of experience that you do? This is a fact direct from a former Jiffy Lube worker, as he explained you don't need any education or prior experience to work here. You just need to show up and be numb enough to be able to rip off unsuspecting customers.