winter storage with a FULL tank of gas

[ScootLemont]

Ok... last months Road & Track or Car & Driver had a story on storing a car for winter.
One of the things they said to do was to FILL the gas tank - the reason being that if you minimize the open space in the tank, you will minimize the amount of space for water vapor to collect & thus minimize the amount of water that ends up in your fuel system by spring.

I have never done it this way but I am going to give it a try this winter.
(along with some sea foam in place of my usual sta-bil)

Anyone have any thoughts?

[Lil Buddy]

That seems to be the norm for most of us that don’t ride during the winter months.

My winter storage routine goes like this:
Ride to the gas station
Fill tank
Add Seafoam
Check air pressure in tires and add as needed
Ride home (the long way to get the Seafoam through all of the vital parts)
Park on center stand
Plug in Battery Tender Jr.

[Silver Streak]

I'd suggest adding the SeaFoam and then filling the tank.

There's no guarantee that riding home will mix a full tank adequately.

[Lil Buddy]

You haven’t seen how I ride

And I usually add it half way through the filling.

[ScootLemont]

Guess its not as radical as I thought then.
I had always stored everything with an empty tank over the winter.

[jasondavis48108]

yup, I always store with a fresh full tank of gas & seafoam. I try to ride all the scoots until their tanks are near empty as well so that I have as much fresh gas as possible in the tank when they get stored. Mainly cause there are so many non-riding months in Michigan.

[Hwarang]

i do that

[supermach]

Ok... last months Road & Track or Car & Driver had a story on storing a car for winter.
One of the things they said to do was to FILL the gas tank - the reason being that if you minimize the open space in the tank, you will minimize the amount of space for water vapor to collect & thus minimize the amount of water that ends up in your fuel system by spring.

I have never done it this way but I am going to give it a try this winter.
(along with some sea foam in place of my usual sta-bil)

Anyone have any thoughts?

That sounds REALLY true BUT someone told me it's better to kinp it with no gas in the tank because what they are puting in the gas now would F up the lines if sitting for to long.

[PeteH]

That's why products like Star Tron exist - to keep the ethanol from precipitating out into gunk. I'm not certain as to how well the other Big Two (Sta-Bil and Sea Foam) do with regard to ethanol, but Star Tron promotes this big-time.

[ed85379]

I'd suggest adding the SeaFoam and then filling the tank.

There's no guarantee that riding home will mix a full tank adequately.

Pretty sure that brownian motion, or simple entropy does a good job of mixing the seafoam and fuel. Within a day, or likely much less, I'd guess that it would be perfectly spread out through the tank, especially since the fuel and the seafoam are supposed to have the same viscosity.

[Silver Streak]

I'd suggest adding the SeaFoam and then filling the tank.

There's no guarantee that riding home will mix a full tank adequately.

Pretty sure that brownian motion, or simple entropy does a good job of mixing the seafoam and fuel. Within a day, or likely much less, I'd guess that it would be perfectly spread out through the tank, especially since the fuel and the seafoam are supposed to have the same viscosity.

Ah, yes... Brownian motion! I'd forgotten about that. Forgive me... 45 years since my last physics class!

How about density? SeaFoam is mostly naphtha and "light oil."

[TVB]

I'd suggest adding the SeaFoam and then filling the tank.
There's no guarantee that riding home will mix a full tank adequately.

Pretty sure that brownian motion, or simple entropy does a good job of mixing the seafoam and fuel.

Quite probably. But a little added jamesbrownian motion can't hurt.

[viney266]

Yeah, I do the full tank and fuel stabilizer routine too. Some things that have an easy drain on the carb, I drain the carb , even with the stabilizer. Battery tender, and cover or put inside.