SailorTPD

Many of you don't use your cars much. I'm one of you. Do any of you use HEET or something similar for moisture control in the fuel system. I recently had an issue with my seldom used motorcycle (had to coast home) so thought I'd ask since the RCF is likely to also have fuel degradation/moisture accumulation just sitting there.

macmaster

How long does it take before you have fuel degradation/moisture accumulation from not driving it?

SailorTPD

up to three months.

According to the U.S. Energy Information Administration, most gasoline sold in the U.S. is “E10” gas made of 90 percent petroleum-based gas and 10 percent ethanol (ethyl alcohol). Ethanol-blended gas usually has a shelf life of up to three months because of the high speed at which ethanol oxidizes. Because ethanol is hydrophilic (a.k.a., water-loving), it will also readily absorb any water or humidity in a sealed container resulting from condensation, causing both moisture contamination of the fuel and the eventual separation of the fuel into distinct gas and ethanol layers. Generally, the higher the ethanol content in the gas, the shorter its shelf life, so E15 (15 percent ethanol content), E20 (20 percent ethanol), or E85 (85 percent ethanol) gas will expire sooner than E10 gas will.