I put a full tank of 100 octane unleaded Sunoco race fuel. Good for up to a year for storage. 110 leaded is better as it can sit for 2 years according to Sunoco.
Long term storage causing stale gas, does no favors
- Thread starter blk7gxn
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i usually store mine for the winter months, nov thru march. i am opposite of most here, i fill the tanks with e10, 10% ethanol. winter in minnesota is a dry cold. moisture is not my concern, i also feel the ethanol will hold any moisture that does get in the fuel in suspension, which will keep things from rusting or worse, freezing.
Keeping the EVAP system intact will help with long term storage. EVAP renders the gas tank a closed vent system which keeps moisture out and slows down the aging of fuel. Some of the low emission systems are good to have.
Every time I fill-up the Mustang or Cutlass I always add the recommended dose of Sta-bil, that way -- as I figure it -- no matter the "when" it's parked long-term (whether a project during the summer or for the winter) I have some stabilizer in there ... it's worked well so far, the car has always started-up with no problems after a shutdown for a month or more, longest is maybe 5/6 months
besides the GP I invest in some of this to stabilize me during the winter......😎
This is 90 days non-E. Don't let it sit...
It's a bike but still has to come all apart to get the carbs off. My 71 corvette with a brand new tank on the other hand, looks just like this! with rust in a galvanized tank! I put fuel in both at the same time after cleaning the carbs on the bike the first time. Id rather drain it all out and fill with mineral spirits if it were going to sit for a few months. Let a small shallow bowl of non-e fuel sit on your bench in the open for a day and look at it. Also, I have a small motor mechanic friend that had people come test fuels. Non-e had 5% ethanol... I'm thinking about keeping a few 5gal cans of aviation fuel for everything but my daily drivers.
It's a bike but still has to come all apart to get the carbs off. My 71 corvette with a brand new tank on the other hand, looks just like this! with rust in a galvanized tank! I put fuel in both at the same time after cleaning the carbs on the bike the first time. Id rather drain it all out and fill with mineral spirits if it were going to sit for a few months. Let a small shallow bowl of non-e fuel sit on your bench in the open for a day and look at it. Also, I have a small motor mechanic friend that had people come test fuels. Non-e had 5% ethanol... I'm thinking about keeping a few 5gal cans of aviation fuel for everything but my daily drivers.
Yeah, just think about the same nozzle at the pumps as the regular and premium. There will be some ethanol. Some guys get pissy we deliver to, we tell them the line is flushed for premium😏.
Before ethanol fuel, carbed vehicles had methanol alcohol added in the really cold weather for just that reason. I add STP additive in the can that looks like Seafoam and run non ethanol 91 in my 2 carbed cars. They sit for 1/2 the year.
I'm thinking the problem I'm seeing is due to the complete recipe they're using now, not specifically just ethanol. But I'm from way back, I rebuilt carbs on outboards at a marine center in the 70's and I've seen this corrosion and sludge problem get progressively worse and much more so in recent years. Only have to talk to a few small motor or outboard mechanics to get picture of this.
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