While I'm at it, I thought I'd ask another question. I have the Flex Fuel on the '11 Ram (4.7L) and E85 is cheaper. But, I've read the mpg goes down and I'm afraid the ethanol will crud up my fuel system. Any thoughts. I'm currently running 87 octane (owner's manual recommended) and as I posted eariler, I get 15.9mpg. Not bad, and I didn't buy it for fuel mileage. So is there anything gained by running E85. Can you safely switch back and forth?
THanks in advance,