I own A GMC Jimmy and brought it to GMC for a oil change, they told me I had an oil leak which is covered under my extended warranty. I never had any oil leaking out of my truck until I got my truck back from them. They billed it under my warranty for over $700+, PLUS I had oil leaking out everywhere on my driveway, come to find out they never tightened the bolt. So did I ever have an oil leak? NO, I didnt. Their service people are good but I dont know about their mechanics. Overall experience; OK and this is only because of the service people
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