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Old Nov 16, 2024 | 09:24 AM
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Default winter fuel storage

iam getting mixed reviews on storing my c7 for the winter. do you do a full tank or run it low? hopefully someone can help thanks
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Old Nov 16, 2024 | 09:30 AM
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I put about 4 or 5 gallons of non-ethanol Sunoco 93. That is low enough to keep the fuel off the tank sending unit.
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Old Nov 16, 2024 | 09:34 AM
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Non-ethanol full tank and a battery tender. One more thing, you have to visit it from time to time to let it know you still love it and you will be together again soon.

More information from a recent thread can be seen here: is it a 1/4 tank of gas???
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Old Nov 16, 2024 | 09:34 AM
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You will see a 50/50 mix on opinions. I personally think it depends where you live. If you live in a dry climate 1/2 full. If you are in a wet humid climate keep it full and use Stabil and some octane booster depending how long you store it.

Last edited by kodpkd; Nov 16, 2024 at 10:32 AM.
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Old Nov 16, 2024 | 10:04 AM
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It gets whatever level of fuel is in the tank unless it is a boat. I leave it to the storage department as the last car since I am usually the first out. They can hook it up to a tender. Winter air is dry and since I have a fully functioning evap system, it is pretty much sealed so not afraid of water vapor.
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Old Nov 16, 2024 | 08:58 PM
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This is what John Deere says for storage of their equipment, so it's good enough for all my vehicles and such: full tank with appropriate gasoline stabilizer.
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Old Nov 16, 2024 | 09:38 PM
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Originally Posted by Avanti
This is what John Deere says for storage of their equipment, so it's good enough for all my vehicles and such: full tank with appropriate gasoline stabilizer.
I don't think I will subscribe to "win a race on Sunday, sell a car on Monday". I might go along with their recommendations for a lawn mower even if it isn't a JD unit but good as their mower motor may be, I don't see how relevant they are when it comes to a fuel injection car.
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Old Nov 16, 2024 | 09:55 PM
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Why You Should Store Your C5/C6/C7 Corvette With Just a Quarter Tank of Fuel
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Old Nov 16, 2024 | 11:22 PM
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Originally Posted by jayrock1976
iam getting mixed reviews on storing my c7 for the winter. do you do a full tank or run it low? hopefully someone can help thanks
Full tank, Techron, and, Sta-Bil.....
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Old Nov 17, 2024 | 07:15 AM
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As you can see, there are mixed comments about how much fuel to leave in your tank...I personally leave whatever is left in the tank on my last drive but I do add Stabil to the tank. Long gone are the days of moisture getting into your tank & mixing with the fuel, modern tanks are constructed of plastic instead of steel & the tank is sealed from the atmosphere. It's the same thing people say with tires that will "flat spot" if left in the same position for an extended amount of time...modern radial tires do NOT flat spot

Last edited by 449er; Nov 17, 2024 at 07:21 AM.
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Old Nov 17, 2024 | 10:15 AM
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Full tank, or close to it although I have my doubts if it really matters.
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Old Nov 19, 2024 | 03:37 PM
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I drive my C7 on occasion, year-round. No storage plans ever.
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Old Nov 19, 2024 | 04:19 PM
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Originally Posted by Skid Row Joe
I drive my C7 on occasion, year-round. No storage plans ever.
Same here, as long as streets are dry and clear in winter months I drive mine, no need for any special efforts. Check tire pressures and keep battery on tender. Mine does sit in an unheated attached garage. I have car covers and don't even use them. Only **** thing I have with my Vettes is I don't drive them in rain or snow, they stay cleaner that way. I've got my truck and wife's Honda for that.
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Old Nov 19, 2024 | 04:35 PM
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Originally Posted by J.Moore
Same here, as long as streets are dry and clear in winter months I drive mine, no need for any special efforts. Check tire pressures and keep battery on tender. Mine does sit in an unheated attached garage. I have car covers and don't even use them. Only **** thing I have with my Vettes is I don't drive them in rain or snow, they stay cleaner that way. I've got my truck and wife's Honda for that.
While I don't care about the cleanliness since I run my cars through the car wash more often in winter, I have summer tires that cannot be driven under 40, IIRC. Also storage leaves the empty garage stall for the snowblower attached to the riding mower. Kinda why the C7 has to be stored. With that space, the truck is driven to the street when I need to clean the driveway and the John Deere can ride straight out with chains.
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Old Nov 19, 2024 | 07:07 PM
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Watch the video by Paul Koerner, the premiere Corvette Tech that GM hired away from a CT dealership for his knowledge, where explains exactly what fuel level to use when storing your C5, C6 and C7. For me this is an easy thing to do to prevent a possible huge repair bill. I don't see a downside. It's worth a watch. Here is the link.
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Old Nov 19, 2024 | 07:18 PM
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Originally Posted by George_L
Watch the video by Paul Koerner, the premiere Corvette Tech that GM hired away from a CT dealership for his knowledge, where explains exactly what fuel level to use when storing your C5, C6 and C7. For me this is an easy thing to do to prevent a possible huge repair bill. I don't see a downside. It's worth a watch. Here is the link.
Will have to watch it "just because" even though I don't "winterize" now that we live on the sw coast of Fla. But, lived in upstate NY for many years and when winter came I made sure to add Sta-bil to the tank before the last fill-up, cleaned it, hooked up the Battery Tender Plus, put the winter cover on it and cried as I hung the keys on the rack.

Living where we are now, I just drive it.
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Old Nov 19, 2024 | 07:24 PM
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Ummmm ... the video mentions the Saddle tanks - but the advice given certainly seems to be more than a little impractical.

The way I understand the operation of the dual tank fuel pump system - there are fuel sending units in both tanks; fuel is pumped from the driver side tank to the engine, and the "jet pump" on the return line pulls fuel from the pass side tank into the driver side tank. So ,,,, the system is designed to keep the driver side tank full until the pass side tank is empty. So - under normal operating conditions - if the pass side tank is 1/4 full - the driver side tank is completely full. If the driver side tank is 1/4 full - the pass side tank is empty.

So - how would you achieve something on the order of 1/4 full on both tanks ???

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Old Nov 19, 2024 | 07:25 PM
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Originally Posted by George_L
Watch the video by Paul Koerner, the premiere Corvette Tech that GM hired away from a CT dealership for his knowledge, where explains exactly what fuel level to use when storing your C5, C6 and C7. For me this is an easy thing to do to prevent a possible huge repair bill. I don't see a downside. It's worth a watch. Here is the link.
Why hasn't GM made that a standard if his word carries so much weight?
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Old Nov 19, 2024 | 07:31 PM
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You can't go wrong with a full tank and some stabil.
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Old Nov 19, 2024 | 07:45 PM
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Originally Posted by qwazipsycho
You can't go wrong with a full tank and some stabil.
For a few months of storage, I really don't think the gas is going to go bad that fast and in that large an amount.
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