An old, dirty fuel filter may result in your D100 Series Lawn Tractor stalling out. Nobody has time for that. John Deere recommends changing your fuel filter every 50 hours or once per mowing season. That’s about once every other mowing season. Check out how to change the fuel filter on your D100 Series Lawn Tractor. We’ll take you step by step. And that’ll help make it easy for you. For specific information and more details check your Operator’s Manual.