They charged me $285 to tell me I should change my oil, and that spark plugs were due by mileage. I asked them to test if the timing chain needed to be replaced, thinking they would test the oil pressure at the top of the engine. I left extremely frustrated, feeling ripped off. For $300, they didn't even take out a spark plug due to "high risk of breaking". If professionals in a shop can't take a plug out for $300, I'd hate to see what they charge for work that requires more than a socket wrench and a can of carb cleaner.