What Happens If You Use Old Gas In A Lawn Mower?

What Happens If You Use Old Gas In A Lawn Mower? The article explains that gasoline has a limited shelf life and can become “old” in as little as a month, causing starting and running problems in lawn mowers. It notes that stale fuel can make equipment difficult to start and operate unevenly, and in more severe cases may clog the fuel system, create carburetor issues, and accelerate rust. The piece describes aging as driven by oxidation, evaporation, and moisture pickup, especially for fuel containing ethanol that can attract water. It also references that gasoline is made of roughly 150 hydrocarbon variations, which evaporate at different rates. The article says decayed fuel is a leading factor behind mowing-equipment failure and discusses basic ways to recognize when gas has passed its prime.