Gasoline is very similar to regular Zippo fuel, and is a lot cheaper. The lighter will burn fine with it and the taste and smell are almost the same as that of Zippo fluid. However, we recommend that you simply use real Zippo liquid to fill your lighter.
Do they sell butane at Walmart?
Zippo Butane Fuel, 5.82 oz., 165 g - Walmart.com.
Does Walmart sell butane for refillable lighters?
Purified Gas Butane Fuel for All Refillable Lighters (2 Pack) - Walmart.com.