The ethanol industry has long been in conflict with the petroleum industry over blending the renewable fuel with gasoline, but that may be changing. This week a coalition of farm, and energy, groups sent a letter to congress in support of federal legislation to “apply the same fuel volatility limit to all conventional gasoline blends during the summer ozone control season.” In essence, they’re pushing for year-round E15 – often referred at retail locations as unleaded 88.