True. It does reduce emissions but it burns quicker and you end up using more fuel. Go figure???? If it ever goes above 10% say good bye to two stroke. You can also use for now 89 octane and a synthetic oil for two stroke and you should be OK.The EPA thinks that adding 10% ethanol to unleaded gasoline will significantly reduce vehicle emissions, can I say Fuel Additives to the rescue, the EPA still has left a major loop hole open in the fuel additive market (little or no regulation). Choose a quality fuel additive for 4 stroke gasoline engine's, and a high quality 2 stroke lubricant can reduce staring issues with the ethanol additive in gasoline.