Gas prices are going up and if there is a cheaper alternative, a lot of us are trying to find out how we can benefit from it.

But some of the gas alternatives that use corn to produce that are being offered are not cheaper if the damage to the vehicle is factored in.

Car companies like Ford, Honda, Mercedes Benz, Chrysler, BMW are voiding warranties for anyone using E-15 gas which is an Environmental Protection Agency (EPA) approved gasoline that includes more ethanol. Car companies are reporting that the gasoline is so treacherous on their engines that they will not pay up if consumers use it in their vehicle.