Auto Parts and Repairs
Nissan Frontier
Watercraft Engine Maintenance

Will c foam help with a low compression of a cylinder?

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Wiki User
02/10/2008

I really doubt C foam will help you compression unless your rings are completlly gunked, it really just frees up fuel lines, I had a 70's model beater and tossed some Marvel Mystery oil into it, and clean out the oil lines, and it evened out the compression, it worked for a while but not a rebuild in a can - some people are 100% against the mystery oil, so check into before you just do it.