quote:
Originally posted by Alex D:
I agree that M1 does not per se causes leaks, but I can attest that, and this is experience with about five cars and over 200,000 miles of using M1,Mobil 1 will find its way around gaskets and radial seals especially in older cars rather quickly. All of my cars that I switched to M1 late in their life, have within 10,000 miles sprung some sort of a leak or seep. It is just a fact that M1 does find its way around not 100% perfect seals and gaskets rather quickly. Once M1 has caused this, going back to dino has never helped to reduce leakage again.