Taken from "Over the River and Through the Woods" thread in FEH section:
Quote:
Originally Posted by kristian
It liked "real" gas better than ethanol blend in terms of MPG (BTW, anyone know the blend ratio in Iowa?), but from a miles per $ standpoint, ethanol came out slightly ahead when purchased in Iowa. This is a little hard to quantify though since none of the gas/ethanol was purchased at the same station or in the same town so the price difference varied.
|
On blends with ethanol, it should be 10% in Iowa unless marked otherwise.
Gasoline in Colorado also has 10% ethanol, incidently. Since 10% has become the "norm" in more than half of the U.S., it no longer is marked at all in many locations. This makes things difficult for those of us in forums like this to keep good records on how our car's MPG is really doing.
EPA is just now allowing blends of 20% and 30% but those are only at a very few locations ( fewer than a dozen nation-wide ) and must be clearly marked. -John