CHARLESTON, SC (WCSC) - Buying generic gas instead of name brand gas will usually save you money. But experts say that's not true when it comes to filling up your tank.
A local expert we spoke to said they always recommend getting a name brand gas over a generic one and that's because companies, like Chevron, Exxon, or Shell, add special chemicals to their fuel before sending it off to a gas station near you.
These additives work to keep your engine clean of deposits that may cause damage, lower emissions and improve fuel economy.
The better the additives in the gas, the better the quality of the gas.
In 1995, as part of the Federal Clean Air Act, the Environmental Protection Agency set up minimum additive performance standards for all gasoline sold in the U.S.
But seven of the world's top automakers say that the current EPA minimum isn't enough to make sure your car or truck run its best.
In 2004, they created a higher standard they call Top Tier Detergent Gasoline.
Gas stations that sell Top TIER Fuel have to meet strict guidelines and use the same treatment rate for all grades of gasoline at the pump from premium to unleaded.
Because of those requirements, their gas prices are a little higher than other gas companies.
Your manufacturer sets what fuel you're going to put in your car. Also they usually have recommendations for name brands, so check your car's owners manual.
Top TIER Gasoline retailers include:
Express Convenience Centers
Hawaii Fueling Network
Kwik Trip/Kwik Star
MFA Oil Co.
Tri-Par Oil Co.