awinfsExplorerJan 01, 2014fuel94 chev 454 TBI OD Trans class c 25 FT runs great gets 9mpg always used reg gas lately with 10% ethanol.Is the ethanol going to mess up my good running RV. Have noticed that mid grade gas often has ...Show More
Old-BiscuitExplorer IIIJan 02, 2014How much more per gallon is mid grade vs regular grade?Ethanol also results in lower mpg....so you fill up more often/spend more
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