Over time and miles, your car might start to slow down. It might not accelerate as quickly as it once did; the engine may not run as smoothly as you remember, or the fuel economy may dip—but ...

Gasoline and diesel fuel are perishable commodities, and that’s why fuel stabilizers matter. Add a small amount of fuel stabilizer to stored fuel and your lawn mower, snowblower, rototiller, chainsaw, ...