Ethanol and your vehicle

For Mondayâ??s Facebook Story of the Day, you wanted to know what impact ethanol has on your vehicle.

First off, you need to make sure your tank is E-85 compatible.

General Motors says staying consistent with the type of gas you put into your tank is most important. "They say we shouldn't burn a tank of one, then a tank of the other and switch back and forth, because you may develop a problem with your computer doing that," said Jim Robertson's salesperson Randy Cowan.

Although ethanol may be a little cheaper, Cowan says it is not as efficient in your vehicle, so you'll be back at the pump sooner.