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Old Feb 1, 2022 | 09:25 PM
  #21  
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Originally Posted by jimmie jam
I did not drive my C7 for 37 months due to health issues. Last May when I took it off the lift, it started right up without issue. Drove it down to about half tank over a two week time period and then just filled up. I would not worry about one year with 93 Top Tier at all.....doing anything is a waist of time from my experience. drive it, FWIW.
Originally Posted by DTOM
One year is fine. An option is to run it down 1/4 tank, fill it up with fresh fuel, repeat.
Not sure I understand. Why run it to a half tank or a quarter tank? That takes more cycles to lessen the amount of old gas. Sure, you can throw snake oils at it to rejuvenate the gas if that makes you feel better. Assuming it has not been stabilized before, isn't it better to run it to empty before filling up? My thinking is that if you have 99% fresh gas, it is better than 50% or 75%
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Old Feb 1, 2022 | 09:28 PM
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^^^^ But you'll still have bad gas in there.......1%

Better to drain the tank, than to take that chance.....
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Old Feb 1, 2022 | 10:25 PM
  #23  
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Just drive it... no problem.
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Old Feb 1, 2022 | 10:52 PM
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Originally Posted by Skid Row Joe
^^^^ But you'll still have bad gas in there.......1%

Better to drain the tank, than to take that chance.....
Bad gas after a year? Drain the tank?

The level of OCD of many Corvette owners is astounding. It doesn’t need Seafoam. It doesn’t need Techron. It just needs to be driven. Period.

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Old Feb 1, 2022 | 10:52 PM
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Originally Posted by Skid Row Joe
^^^^ But you'll still have bad gas in there.......1%

Better to drain the tank, than to take that chance.....
To be absolutely certain, sure. In this case, you have run off 99% so what is 1% more? If you want to start from the beginning and drain the tank it is about $1000 and up, including a tow. IDK if you can easily run the pump without the engine running to drain the tank
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Old Feb 1, 2022 | 10:54 PM
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Originally Posted by Steve_R
Bad gas after a year? Drain the tank?

The level of OCD of many Corvette owners is astounding. It doesn’t need Seafoam. It doesn’t need Techron. It just needs to be driven. Period.
Not sure if it is OCD but it might require a virgin sacrifice. I'll be the one testing the virginity before sacrifice.
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Old Feb 2, 2022 | 10:58 AM
  #27  
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I'm not sure just draining the tank will be sufficient. I'd replace the tank. Why take chances?
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Old Feb 2, 2022 | 11:02 AM
  #28  
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Shouldn't we replace the car?
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Old Feb 2, 2022 | 11:09 AM
  #29  
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Originally Posted by VandelayIndustries
I'm not sure just draining the tank will be sufficient. I'd replace the tank. Why take chances?
Exactly. I think that you'll also have to change the windshield, drivers window glass and the front/rear bumper covers to make this tank replacement work out, just to make sure...just say'in
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Old Feb 2, 2022 | 11:16 AM
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Originally Posted by hornetball
Shouldn't we replace the car?
Originally Posted by jimmie jam
Exactly. I think that you'll also have to change the windshield, drivers window glass and the front/rear bumper covers to make this tank replacement work out, just to make sure...just say'in


Well that all seems like overkill.

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Old Feb 2, 2022 | 11:41 AM
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Originally Posted by VandelayIndustries


Well that all seems like overkill.

I concur. Windshield is fine. No need to replace. The rest, sure
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Old Feb 2, 2022 | 01:47 PM
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Originally Posted by VandelayIndustries
I'm not sure just draining the tank will be sufficient. I'd replace the tank. Why take chances?
Great idea. A better one would be to replace the car and it's overnite parking spot...Fumes may be lingering
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Old Feb 2, 2022 | 01:47 PM
  #33  
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Originally Posted by Jud Chapin
Great idea. A better one would be to replace the car...
Order a C8?
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Old Feb 2, 2022 | 01:54 PM
  #34  
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Originally Posted by aklim
Order a C8?
Now yur talkin...
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Old Feb 2, 2022 | 01:59 PM
  #35  
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I've had gas in Corvettes (including C7) quite a bit longer than a year and drove them without issue.
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Old Feb 3, 2022 | 07:07 AM
  #36  
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Originally Posted by dork
As a last resort you could add ONE OUNCE (1 oz.) of Pri-G gasoline additive to the tank and see if it'll rejuvenate the gas. There have been several stories floating around that that tactic works on real old gasoline. The Pri-G rep I spoke to says that adding more than recommended won't hurt anything, it's just expensively wasteful. The proportions are 1 oz of Pri-G for every 15 gallons of gasoline. That worked for my F-150 after ~26 months.

https://www.amazon.com/CP122-Pri-G-G...009TWQAOA?th=1
You can't "rejuvenate" bad gas, the trick is to treat the fresh fuel
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Old Feb 3, 2022 | 07:18 AM
  #37  
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Originally Posted by 449er
You can't "rejuvenate" bad gas, the trick is to treat the fresh fuel
It's only a few bucks so what have you got to lose? This is what the snake oil manufacturers think. And usually, they are successful.
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Old Feb 3, 2022 | 11:07 AM
  #38  
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Originally Posted by aklim
I concur. Windshield is fine. No need to replace. The rest, sure
Bad gas has been known to damage the rear view mirror. Replace that for sure

Seriously, I would just drive it if it runs ok and replace the fuel at a half tank. Let us know how it goes.
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Old Feb 3, 2022 | 11:34 AM
  #39  
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Originally Posted by Maxpowers
Bad gas has been known to damage the rear view mirror. Replace that for sure

Seriously, I would just drive it if it runs ok and replace the fuel at a half tank. Let us know how it goes.
Interior or exterior?

Why not go all the way to empty?
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Old Feb 3, 2022 | 11:38 AM
  #40  
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Don't overthink it, just drive it. I'd run it til its on E as quickly as practical and then refill with all new gas. I might run a bottle of techron through it in the next tank.
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