Cold Weather Oil Flow & MMO

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Originally Posted By: Donald
Originally Posted By: Dufus2
Originally Posted By: dlundblad

I've seen the stuff do some decent cleaning here with shorter OCI's so I'd say it does something.

The MSDS shows it has the same naphtha as most penetrating oil products. Its also my understanding it has sulfur as an antiwear additive. In my experience, MMO dissolves gum around the piston rings and loosens up carbon in the valve guides in addition to other areas with limited oil flow. I just added 3-oz per quart due to the very cold weather to prevent battery drain and help with sticktation before my next oil change.. Thanks guys for adding your opinion.


Have you pulled engines apart after running some MMO to examine the rings and valve guides? How did you reach your conclusions?

What makes you think I have NEVER dismantled engines to the bare casing? The piston skirts look brand new after using MMO and cleaning the valve guides is much easier because all the crud is gone. There is never any unusual wear from a lack of lubrication.
 
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