Auto-Rx has no aggressiveness on polymer seals, such as main seals of the crankshaft or cam seals. Auto-Rx does not swell these polymers at all. Its only impact is cleaning oxidized oil deposits from the seal material and companion rotating shafts. Many folks run the cleaning cycle out longer than 3000 miles. There are also folks that run the maintenance dose ( 3 to 4 fluid ounces in the sump) for the entire life of full synthetic oil change intervals for intervals well over 10,000 miles.
If you feel more comfortable dumping your current oil fill with Auto-Rx installed fine. Go ahead and go into the rinse phase with conventional oil or group III oil. You can always d a second cleaning and rinse down the road.
Yesterday on the phone, I asked about the risk of going 5000 to 6000 miles with double cleaning cycles because of being aggressive on the seals. He said if the seals start leaking, then it's OK because the rinse cycle will condition them to stop leaks. The engine has not leaked any oil. Is there a chance that going 5-6k could start a leak? If there's even a small chance of this, I'm willing to sacrafice the new oil because I do not want an oil leak to start.
Thanks one more time for your input, Eric.
Eric,
Auto-Rx has no aggressiveness on polymer seals, such as main seals of the crankshaft or cam seals. Auto-Rx does not swell these polymers at all. Its only impact is cleaning oxidized oil deposits from the seal material and companion rotating shafts. Many folks run the cleaning cycle out longer than 3000 miles. There are also folks that run the maintenance dose ( 3 to 4 fluid ounces in the sump) for the entire life of full synthetic oil change intervals for intervals well over 10,000 miles.
If you feel more comfortable dumping your current oil fill with Auto-Rx installed fine. Go ahead and go into the rinse phase with conventional oil or group III oil. You can always d a second cleaning and rinse down the road.
