Comment Re:Bullshit argument (Score 1) 46
Back in the '70s, cars were "dirtier" than today, and some EPA folks realized: "If we put some oxygen into the gasoline, engines will burn leaner, emitting less unburnt hydrocarbons!" That's true, if your engine has a carburetor. Accordingly, "oxygenate" was mandated for all gasoline. MTBE was one oxygenate, ethanol (from corn) was another. And, the science worked, and the air got a bit cleaner.
Fast forward to the 90s, when all cars had fuel injection and oxygen sensors. That same "oxygenated" gasoline burns leaner, the O2 sensor notices the mixture is a bit lean, and the fuel injection computer richens the mixture to compensate. Net result: lower fuel economy. Zero difference in emissions.
Today, all car engines have O2 sensors, oxygenate makes zero difference in cars. Yes, oxygenate still helps in small gas engines (any gas engine with a carburetor). The only reason to continue with oxygenate/ethanol is the politics.