Fill all fuel tanks and add fuel stabilizer (Sta-Bil, 1oz(30mL) to every 2.5 gallons(9.5L) (0.4oz per gallon) to:
Tractor Sears Craftsman Model #: 944.607860, 24.0 HP 46" Mower> Gas Tank Capacity: 3 gallons (1-1/4oz stabilizer)
Push Mower Mastercraft Model #: C459-36203Gas Tank Capacity: 1 gallon(estimate) = 0.5oz stabilizer
Husqvarna Model 325L Ga Trimmer Gas Tank Capacity: 0.343L=0.075 gallons = 0.1oz stabilizer