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Treating E10 for winter storage

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Old 11-28-2022 | 12:59 PM
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Question Treating E10 for winter storage

When the only choice is E10, how do you prepare your 993tt for winter storage? Searches have shown wide use of Star Tron, Stabil 360 and Seafoam. Others suggest doing nothing because fuel systems are airtight. What's a guy to do?

Last edited by ronnie993tt; 11-28-2022 at 01:01 PM.
Old 11-28-2022 | 06:29 PM
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I have a carbureted 964 and just put some Stabil in the tank.
Old 11-29-2022 | 11:42 AM
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I would put the Stabil in to the correct amount and then take a drive to get the treated fuel completely through the system including the injectors.

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Old 11-30-2022 | 12:44 AM
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So just carry on as if storing it with non-ethanol Shell 91.
Old 12-05-2022 | 03:05 PM
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I usually like to put a little bit of seafoam in the fuel tank, and then ensure that I start the vehicle semi-regularly during storage.

911s, post 1969, all use a return-style fuel system, wherein the fuel pump delivers more fuel than the engine can use, and then returns it to the tank. This was done to prevent vaporlock as it keeps the fuel flowing and cool.

Anyway, this brings gasoline through the fuel filter system, and seems to prevent it from going stagnant and simply sitting in the tank without movement.

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Old 12-06-2022 | 06:32 PM
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Originally Posted by Matthew Scott
I usually like to put a little bit of seafoam in the fuel tank, and then ensure that I start the vehicle semi-regularly during storage.

911s, post 1969, all use a return-style fuel system, wherein the fuel pump delivers more fuel than the engine can use, and then returns it to the tank. This was done to prevent vaporlock as it keeps the fuel flowing and cool.

Anyway, this brings gasoline through the fuel filter system, and seems to prevent it from going stagnant and simply sitting in the tank without movement.
Sorry Honey. I'd love to visit your parents today, but I have to exercise The Princess.
Old 12-07-2022 | 12:38 PM
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I'm lucky my in-laws are just as big of petrol-heads as I am.




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