7 Car Repairs a 26-Year Mechanic Would NEVER Let a Shop Do (Save Hundreds)

After 26 years under the hood of other people's cars, there are seven jobs I watched customers say yes to that either did nothing at all, or quietly took years off the life of the car. Here's what to say no to: 7. Engine flush on a high-mileage car 6. High-pressure transmission flush on an old, never-serviced transmission 5. Premium fuel when your manual doesn't require it 4. Parts replaced by mileage when they can be measured 3. Replacing a part just to diagnose a problem 2. The wrong coolant in your car 1. Any work without a written estimate None of this means mechanics are out to get you. Most are honest and good at the job. But the man behind the counter gets paid when you say yes, and you're the only one in the building who gets paid when you say no. Which of these have you been sold? Tell me in the comments.