Unleaded 88 is a fuel blend that contains 15% ethanol and has an octane rating of 88. It is sold at Sheetz for a lower price compared to regular gasoline. According to the U.S. Environmental Protection Agency, Unleaded 88 can be used in all 2001 and newer cars, trucks, and SUVs. It is more environmentally friendly than the more common 87 gasoline. However, it may result in slightly lower gas mileage, but for most drivers, it will not be noticeable. It is important to check your owner’s manual or manufacturer website to ensure that your vehicle is approved to use Unleaded 88