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Old 03-29-2021, 05:06 PM   #22
JKY
Senior Member
 
Join Date: Mar 2020
Posts: 150
Default Re: Marvel Mystery Oil in Crankcase

Quote:
Originally Posted by Bob Bidonde View Post
Every time a discussion about MMO is posted, many claims of the goodness it does for a motor come up. However, not once have I seen any proof of those hearsay claims. So for those who say MMO has any value in the gas tank / in the crankcase, lets see the proof.
You are absolutely right. There is no proof and I doubt anyone here has the inclination or resources to finance a study on it. I don't use it in the engine, but I do add a little to the gas. I think there is probably a 95% chance that it's snake oil (or mystery oil!), but I feel better about using it and mixing a little in the gas won't hurt anything.
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