Sometimes the mistakes of others create situations from which we can all learn. A friend of mine who is in the process of moving out of state had two fifty five gallon barrels of old gasoline that he had never got around to using. One was purchased just before Y2K and the other around 10 years ago. They have been sitting out in the weather exposed to the sun for the whole time.
So now that it is time to move he has to get rid of the gasoline. However, gasoline is not the easiest thing to get rid of. So he gave his son $200 to get rid of it. His son thinks about it and decides that he thinks he can save the gasoline.
The son has a transfer tank on the back of his pickup, so he pumps the contents of the newest of the gasoline into the transfer tank. He said that it looked yellowish. So then he goes and gets three bottles of Sta-bil, which is a fuel additive you are suppose to put into fuel to keep it from going bad. It normally extends the life of fuel a years or so. He dumped all three bottles in to the tank. Each bottle was rated for treating twenty gallons of gasoline.
He then dumps in three bottles of HEET which is a gas-line antifreeze and water remover. The transfer tank he is using has a filter unit on it. So he pumps the gasoline through the filter and back into the tank. He lets it circulate for about 2 hours. Now he said the gasoline looked much clearer. He then drained the petcock on the filter to let out any water it had collected. None came out.
The gasoline now looked and smelled ok, so he ran it through a small engine and it seemed to run fine. His truck was on empty so he put a few gallons in the tank and his truck ran normally. He is now about finished using the first barrel and is getting ready to start on the second.
His truck has fuel injectors and so far he has had no problem with them and his in line filter is clear. I don’t know that I could recommend this method for using old gasoline, but it worked for him and it might for you in an emergency.