Canned fuels are expensive but for somethings used once every 3 mo to a year they are a good buy. for example:
Grandma likes to use her weedeater and uses a gal of mixed gas all summer. Cost of gas at $8 per Qt= $32. Can be stored till next year with the same gas mix- good for a year in machine.
Cost of reg gas(hoping no ethanol in it) $8.00. Cost of mixing oil. Depends on oil but lets say $5.00. Cost of summers fuel $13. Cost of cleaning and repairing card diaphrams next season so unit will start. $65 to $100. That makes the cost of fuel: reg gas and repairs- a min of $88. Which is cheaper $32 or $88?
Cost of canned fuel - $32.00 and it starts every time easily for Grandma.