I see that the EPA is asking for input to a proposed new rule in the management of the Renewable Fuel Standard or RFS. This is a federal government mandate that requires a yearly an increase of the percentage of ethanol in gasoline which is now 10% to a new amount which soon will be 15%. In a year or two or three the percentage will continue to increase to to more, such as 20%, 30% until 2022. MANDATED requirements state that biofuel use will need to increase from the current 12 billion gallons to 36 billion by 2022 Less than 5% of all cars and trucks in use in America now are designed to run on gasoline of greater than 10%. My owners manual of my 2014 Z states that the warranty is void if I use more than 10% ethanol. Does anyone know if we can run higher percentages of ethanol, like 15%, 20%, 30% without damaging the engine? Does anyone think Nissan will adjust their warranty policy concerning the ethanol percentages? I know I can run it if I make extensive modifications to the engine, but with increasing percentages it is going to be difficult to yearly adjust. Thoughts? More info
Wikipedia