Originally Posted by Hotrodz

It is not so much about the percentage of ethanol at the pump to a certain extent. It all about the impurities in the percentage of fuel that is not ethanol. I had to have a fuel pump replaced because there was so much junk in the pump ethanol I was running and it was over 80% ethanol. I started running nothing but e-90 after that. There have been improvements made to fuel pumps made for ethanol since then.

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