I just got off the phone with the sales rep. for Pearson Fuels. Pearson is taking over Propel as the E85 supplier in California. They are a San Diego based company. I called to ask about the E content of winter blend and they confirmed that their fuel is 83.3% year round. It's not a weather thing but a tax thing in California. If the fuel is not at least 83% they have to pay a fuel/emissions tax. The 83.3% is from the blend process and from what I was told is very consistent. Rarely, I was told will it go above that.