five to seven years Click to see full answer. Just so, how long does camp fuel last? about three hours Also, how long will a Coleman stove burn? The Coleman stove operates on clean-burning Coleman Fuel or unleaded gas and one tank gives you two hours of burn time. This stove can boil a quart of water in four minutes. Also, how long does a Coleman propane fuel 16.4 oz last? A disposable 14 or 16 ounce propane tank will last about 1.5 to 2 hours. A standard 20 lb propane tank should last about 18-20 hours on most grills.Can Coleman fuel be used in lawn mower?Keep the coleman fuel for stoves – sell it if you don’t have stoves. Unleaded is fine for 2 stroke engines (with oil added, of course). Older 4 stroke (lawn mower) engines need some additive (potassium based) for using unleaded, as they were designed for leaded gas, and will wear out faster on unleaded.

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