And how much does this bunch of 20L cans cost to save a few cents? $25 + tax +$28.25 not to forget the cost of gas to drive there and back for 1 20L can. So even if gas goes up .10C a litre, you would have to buy 280 litres just to cover the cost of 1 gas can, and, then don't forget you're burning gas to go to the gas station to fill them up. BTW, I didn't add the cost of stabil either.