Originally Posted By: Steve S
What exactly does this stuff really [supposed to]do?
FWIW, My car ran -amazingly smooth- on a half a can of Mos2. Feeling incomplete, I added the other half a can, 500 miles later. Both times on hot engine. No noticeable improvement over adding the second half of the can, and it did make the oil almost rust-colored (perhaps it displaced rust?) .. However, this additive made the engine run its smoothest. I also added it to MaxLife 20W-50, and plan on doing so again, once i get my car straightened out.
Basically, this is better than anything i have ever put in my oil, including MMO. I always thought adding MMO qould be counterproductive, however, one of the quarts from here on out after my double-dose ARXing will be MMO, and a half a can of this product every 4000 mile OC, maybe 1/3 the second OCI, its potent stuff.