Is there anybody using or used the AvBlend and MMO[Marvel Mystery Oil] in our engine's oil ? and MMO in the fuel? My IA recomended he use of AvBlend & MMO=small amount at each oil change and to use MMO in the fuel [ 4 Oz per 10 gal]. I use MMO (even in my truck) but not the AvBlend. Would like to know some opinion and experiences before using it. Thanks

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