When I first bought my car a little over a year ago with 70,000 miles I gave it an application of Auto-Rx. At 80,000 miles I had it in for the timing belt/water pump/valves service and the mechanic commented how clean the motor looked. It's now 60,000 miles later and I'm considering another Auto-Rx treament. I was wondering if anyone else out there is using this stuff?
