Originally posted by Andy W.:
Except that it can destroy seals and gaskets!
-Andy
Stay away from any engine flush product!
Regular changes and quality oil negate any need for this crap. (I run synthetic so it's a no-brainer not to use it already)
It can guarantee fresh new leaks on older cars that use this stuff. Provided the loosened gunk doesn't get clogged in your oil passages.
