Posted June 2, 2015
With EPA last week proposing ethanol-use requirements for 2014, 2015 and 2016 under the Renewable Fuel Standard (RFS), the ethanol industry no doubt will keep lobbying to foist increasing amounts of higher-ethanol blend fuels like E15 and E85 on the motoring public. This, despite studies that have shown E15 can harm engines and fuel systems in vehicles that weren’t designed to use it – potentially voiding manufacturers’ warranties – and historically small consumer demand for E85.
A subset of the argument for increased use of higher-ethanol blend fuels is the dismissing of concern that E15 also could damage existing service station infrastructure, including storage tanks, fuel lines and dispensers. Though service station owners and operators indicate otherwise, ethanol supporters say that a new National Renewable Energy Laborary (NREL) report – commissioned by the Renewable Fuels Association (RFA), a big ethanol advocate – found that E15 is compatible with existing equipment. It’s simply not true, and the report has some challenges. Let’s look at a few.