This question as been in my mind for a while.
As evident by this board even a regular user of synthetic will inevitably see deposit formation in thier engine.
An old mechanic book i found at the library said this service should be done every 50,000miles. LOL then again this book had the API service designation of SF as the most modern for the time
Do you think this service would keep engines cleaner in the long run? Are most deposits in an aged engine found on the oil pan or dispersed everywhere else?
Thanks-
![[Smile]](images/icons/smile.gif)