Originally posted by ohsigmachi:
Originally posted by iso50:
If you use a high quality synthetic oil, there is no reason to add extra stuff to oil. Auto-Rx is an additive meant for claening not for running all the time. Personly I haevn't used Auto-Rx, since I run full synthetic oil in all cars I own.




Actually Auto-Rx recomends running a "maintenence dose" all the time.




Avoid it, and just run a good synthetic oil. I have not needed to use Auto-Rx, since my synthetic oil keeps the engine clean.