Key Points • Propane tanks can be stored outside in winter, but only in sheltered, ventilated locations. • Rust, corrosion, snow, and ice may damage the tank and release flammable propane. • Never ...

Back in 2004, several automakers got together to create a more pure form of gasoline to meet strict standards set by the U.S. Environmental Protection Agency (EPA), now known as Top Tier gasoline.