Zachary J. Santner, senior specialist of quality at Sunoco, has been answering our fuel questions for years–but here's your chance to have him answer your fuel questions.
Questions about gas? Skip the message board and hear it from a fuel expert.
What exactly does that fuel additive consist of, and does it actually improve the gasoline in your tank?
What happens to gasoline as it ages? Find out in the next issue of Grassroots Motorsports Magazine.
