57chevyconvt
Well-known member
Since ethanol is now added to gasoline, is there a grade of gasoline that doesn't have ethanol? The reason for asking this question is that ethanol is attacking the rubber o-rings and gaskets in in the carburetor of my Robin-Subaru RG4300is generator. If I replace the rubber o-rings and gaskets in the carburetor with OEM parts, they will probably be of the same material that was originally used by Robin back in 2005 when I purchased the generator. Any suggestions on what course of action that should be taken to solve this problem of rubber compatibility with ethanol+gasoline.