Actually the problem is changing the carburetors over. Brazl has 15% of there vehicles that have changed there carbs so that they can take straight gas, straight ethanol or a mix. The auto industry in the U.S is still in denial as is the oil industry. I assume you are a member or supporter of the oil industry. fyi, the United States is changing its tractor trailers over to lp which is plentiful and gives just as much power.