Your question has been raised several times. Here's a link to one of several threads on the subject of good and honest auto repairs:
Any Honest Auto Repair Shops?
We've been using
Hutson Automotive Repair, 3201 US 27\441, Fruitland Park. They're right next door to
Stavros Pizza. They've been there for almost 30 years. They open at 8, and try to do all oil changes at that time to allow for regular auto repair work during the day. They're busy and they're reasonable and they don't need to find dubious work to stay in business. The owner's name is Craig Hutson and that's who you see when you bring your car in for service.