Gasoline loses much of its volatile components to evaporation, and also slowly oxidizes. Gas can "go bad" and become unusable as soon as 4 to 6 months after dispensing from the pump.
Keeping it in a tightly sealed container will help prevent oxidation. There are fuel stabilizing chemicals that can keep small amounts of gasoline usable for up to a year or possibly longer.
Gasoline is old after a month. Especially gasoline which contains ethanol. Ethanol looses its octane rating much faster than petroleum.
The cost of gasoline made their summer plans too expensive. The small engine ran on gasoline mixed with oil.
yes
Will old gasoline harm a snow blower? No more than it will harm any other gasoline engine. Gasoline has a number of different vaporizations fluids. Some higher than others. If the gasoline is very old, all the higher vaporization point fluids may have evaporated. Then you may have trouble starting. Another question for you to consider is: How old is old? If the gasoline is only a month old or even several months old probably no problem. But, if it is six months or over????? How much do you have? Even at $3.00/ gallon why take a chance. If you really want to use it, start the blower and after it is running well, add some that has been mixed with new gasoline. That way you can use it and not have any troubles.
The best gas mileage from unleaded gasoline or premium gasoline depends on the car. Old cars get better mileage from unleaded.
YES.
Nope, adding new gas to old just makes a larger batch of bad gas.
It wasted too much gasoline.
Fuel pumps must not be too long because of the circulation of the gasoline. Too much can heat up the gasoline and cause performance issues and cause cavitation to the pump.
Nothing. 4 month old gasoline is still good enough to use. Gasoline starts to go bad after 1 month but can be used up to 6 months after it was refined.
8 and up
newer gasoline from the past 3-4 months in most places has 10% ethanol in it they sell an additive if you have anything with a small gasoline motor (lawnmower, 4-wheeler,etc) so it doesnt mess up your engine or fuel system when you mix the old gas and new gas