Gates Fuel Filler Neck hose is designed specifically for auxiliary gas tanks on recreational vehicles. It is an excellent replacement for passenger cars and trucks where a straight hose with minimal bend is required. Suitable for use with gasoline, gasohol blends of ethanol, methanol, ethers, diesel and biodiesel to B20 (up to maximum concentrations allowed by the EPA). Angled Fuel Fill Hose is designed for tank fuel fill connections where straight hose will not work.