Early on with Auto-Rx we had suggested running a clean and rinse cycle every 25,000 miles to keep a motor deposit free. Over the last 3 years we have realized that it is more effective to run a smaller dose of Auto-Rx with each oil change.
In addition to keeping your motor’s vital internals clean, Auto-Rx has shown to reduce wear, as well as providing for a lower coefficient of friction than that of motor oil alone. With just three fluid ounces ( four if sludge issues) in the sump, enhanced lubrication is provided as well fuel efficiency. So why wait utilizing the Auto-Rx benefits every 25,000 miles, when you can have it working every time you turn the key.
The maintenance dose has shown excellent results through used oil analysis, with both conventional oil runs and full synthetic oil, with extended drains.