One thing I always do is put a bottle of Sta-bil in the tank every winter. My question is, should I store the Vette with Premium, Regular or does it even make a difference? Up here in Michigan we have already switched our fuel to the winter blend mix. I figure since this fuel will be setting in the tank until March I want to make sure it not going gum up or damage any of the fuel system giving me headaches this spring.

Either one is fine. Won't make a difference.

Regular plus stabil

A lot of debate over this subject but one thing I know is that as gas ages it loses octane. I don't know how much over what time period though. People in the know have even told me that be sure and buy your premium from a station with higher traffic so the premium hasn't been in the station's tank for too long. Another thing is that gasohol (gas/alcohol blend) deteriorates the fastest. Most premium gas is not a blend. For these reasons I put premium in every gas engine I own if the fuel is going to be in the tank for an extended period of time. Also gasahol is not good in older vehicles because it tends to loosen up crud in your tank and lines which plugs your fuel filter.

Newer gasoline is not as prone to gumming up like the old leaded gasoline. You will be fine over the winter. Stabil supposedly extends the life of dormant gasoline for 2 years.

When I got the 79 running, it had been sitting for 3 years untouched. Used up the gas that was in the tank without an issue.

Matthew

When you say you are "putting it up for the winter" Where is it stored? Can you not get to it where you can start it once per month?

If so, just start it and let it warm up....forget the rest of the issues as they really don't amount to much.

Mark: I live in Northern Indiana, I've have several stored cars from late Oct to end of March. Full up tank with Prem. fuel and Sta-bil fuel stabilizer. I try to start and warm up to Op temp once a month. In the spring I change the fuel filter. I have a 13,000 watt Honda generator for emergency back-up with fuel thats is 22months old. Sta-bil works!!! The beginning of this month we had a 9 hr. power outage. Engine fired right up and ran perfect. Honda air-cooled engines can be sensitive to stale fuel.

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I just fired up my generator that has 18 mo. old regular with no additives. No problem.

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I've been hearing otherwise with the E10 gas lately. Apparently it doesn't play well with water in the gas. I haven't done any research on it though.

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That is very possible. Ethanol is an odd duck. I haven't looked into it too far. I think just adding stabil will be fine.

Matthew

It's been a big issue on the motorcycle forums I frequent. Lawnmowers aren't as sensitive to shitty gas as a tightly wound engine. Those will run on bacardi 151 if you're desperate to cut the weeds. I'm guessing the SBC is closer to the lawnmower end of the spectrum of engine design.

It is stored at the in-laws while they are Arizona for the winter. I don't really have access to starting as frequently as I would like. (maybe once / month)