GrySql Report post Posted January 27, 2013 The discussion on fuel mileage and types of 'gas' we use has finally made me want to know more about what we pump into our cars at the fueling station.Not being a chemist, math expert or engineer I need it explained in plain language.This article does a pretty good job explaining what goes in the tank, and why. http://eprinc.org/?p=300 Quote Share this post Link to post Share on other sites
acdii Report post Posted January 28, 2013 Gasoline, benzene, ethanol, butane, detergents, oxygenators and octane boosters. More butane in winter than summer. Quote Share this post Link to post Share on other sites