Gas tank empty or full during storage?

chipj29 · 07-29-2013, 08:56 AM

I think this is one of those topics you will likely get 49% ppl saying fill it up, 49% saying empty it, and 2% don't have an opinion.

Personally I am in the keep it empty camp. Even if stabilized, it is possible that the fuel breaks down during the storage period. If it does break down, it is difficulty to siphon off a large amount of fuel and dispose of it.

When storing, I siphon off as much fuel as I can. Then I add 1 gallon of stabilized fuel to the tank. Once that is in there, I start up the motor and let it run until the stabilized fuel has made its way into the motor (you can tell when it runs a little rough).

When taking it out of storage, I fill the tank with nice fresh fuel (89 octane) and off I go.

FWIW, I have been doing this for my Sea Doo and both my snowmobiles for several years. I have not had any probs doing it this way.

07-29-2013, 08:56 AM	#3
chipj29 Senior Member Join Date: Apr 2004 Location: Bow Posts: 1,874 Thanks: 521 Thanked 308 Times in 162 Posts	I think this is one of those topics you will likely get 49% ppl saying fill it up, 49% saying empty it, and 2% don't have an opinion. Personally I am in the keep it empty camp. Even if stabilized, it is possible that the fuel breaks down during the storage period. If it does break down, it is difficulty to siphon off a large amount of fuel and dispose of it. When storing, I siphon off as much fuel as I can. Then I add 1 gallon of stabilized fuel to the tank. Once that is in there, I start up the motor and let it run until the stabilized fuel has made its way into the motor (you can tell when it runs a little rough). When taking it out of storage, I fill the tank with nice fresh fuel (89 octane) and off I go. FWIW, I have been doing this for my Sea Doo and both my snowmobiles for several years. I have not had any probs doing it this way. __________________ Getting ready for winter!