Testimony of Jeff Wasil on E15


before United States House of Representatives:

Ethanol is not gasoline, and the problem is that ethanol contains additional oxygen. As higher quantities of ethanol are blended into base gasoline, oxygen contained in the fuel increases, which leads to engine enleanment. Since many non-road engines do not have the capability of detecting the air/fuel ratio requirements of the fuel, the engine could face catastrophic failure. As a member of the team responsible for engine calibration, and the person responsible for emissions certifications, EPA requires me to design, certify, and lock-in with tamper-proof controls, the optimal fuel/air ratio needed to meet emission requirements. When the fuel changes in the marketplace and additional oxygenates added such as by going from E10 gasoline to E15 engines run hotter, causing serious durability issues and increased emissions either in the form of increased Nitrogen Oxides (due to enleanment) or increased hydrocarbons (due to misfire). Additionally, ethanol is hygroscopic meaning that it has an affinity for water. Obviously there is significant opportunity for fuel-related issues in the marine environment due to the presence of water near openvented fuel systems and due to the inherent long-term storage and usage cycles unique to recreational boats. Ethanol only exacerbates these issues.  Read the Full Report