Storage additives?
Thread Starter
7th Gear
Joined: Sep 2020
Posts: 7
Likes: 0
From: McHenry, IL.
Storage additives?
I'm putting my 91 into a winter storage facility for 4 months. It's heated and will have a battery tender. Are there any additives I should put in the gas when storing for that length of time?
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Thanks Hawkeye56
Heel & Toe
Joined: Apr 2020
Posts: 19
Likes: 1
From: Stonewall,Manitoba
I have never added any additives to my fuel. the shop is only heated when I need heat and I've stored my '81 Trans Am and my '84 Mustang GT Vert which are both sold, the '87 Vert is in the same shop and as cv67 said charge the battery and it starts.Although I use battery tenders and premium fuel, but it's up to you.
Le Mans Master
Joined: Jul 2004
Posts: 6,213
Likes: 694
From: Clifton Park, NY ............Clearwater, FL ... 85 Original Owner
It could rust too by not being covered. Terrible advice
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Le Mans Master
Joined: May 2005
Posts: 7,300
Likes: 2,221
From: Central Maryland
I've left my C4s, and several other vehicles, sitting all winter for years. Sometimes as long as 6 or 7 months. Zero additives, battery tenders on, and zero issues as a result. Never, ever, been a problem. Tires flat-spot, but after a couple miles of driving, they're round again.
Small carbureted engines are a different matter. I always run them completely out of fuel before storing for more than a month. I've had to clean out more small carburetors than I could count after the ethanol-laced fuel jelled in their tiny jets.
Live well,
SJW
Small carbureted engines are a different matter. I always run them completely out of fuel before storing for more than a month. I've had to clean out more small carburetors than I could count after the ethanol-laced fuel jelled in their tiny jets.
Live well,
SJW
Safety Car
Joined: Mar 2003
Posts: 3,580
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From: Indianapolis IN
Finalist 2020 C4 of the Year - Unmodified
C4 of Year Finalist (stock) 2019
My thoughts exactly. I can't tell you how many rusted sending units I've come across in super clean cars that you would never guess would have that issue.You also have the consideration of the volitiles evaporating from the gas which will result in the gas going "stale" much faster with a 1/4 tank than with a full tank.
Keep the tank full, no additives, and you will be just fine in the spring.
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Bad Advice
Check out Tech Nerd in the June 2020 Corvette Magazine, Filler Partially up
or check with GM on 2003 and later they have changed their stance on storage with a full tank.
I was agreement with you until I read the article.
Thanks Hawkeye56
Check out Tech Nerd in the June 2020 Corvette Magazine, Filler Partially up
or check with GM on 2003 and later they have changed their stance on storage with a full tank.
I was agreement with you until I read the article.
Thanks Hawkeye56
Team Owner
Joined: Jul 2004
Posts: 28,331
Likes: 3,245
From: Hartford WI
So how does that work? When I fill up, I run a full tank and that would be the same thing.
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Fuel that sits in the tank all winter will damage the fuel sender card from the sulfur.The reason it targets 03 and newer is the tank has to be dropped to repair. We all know the C4 does not. I suggest you look up the article and make your own decision.
Melting Slicks
Joined: Jul 2008
Posts: 2,265
Likes: 141
From: Ottawa Ontario
From the article
Fuel that sits in the tank all winter will damage the fuel sender card from the sulfur.The reason it targets 03 and newer is the tank has to be dropped to repair. We all know the C4 does not. I suggest you look up the article and make your own decision.
Fuel that sits in the tank all winter will damage the fuel sender card from the sulfur.The reason it targets 03 and newer is the tank has to be dropped to repair. We all know the C4 does not. I suggest you look up the article and make your own decision.
Melting Slicks
Joined: May 2007
Posts: 2,072
Likes: 109
From: Longmont Co
I read that too, but wasn't that for 2003 and up models? Not C4s?
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Then we will have to decide what will cause the most damage in your tank rust or sulfur.
With this being pointed out I personally think rust is the worst. I will replace my sender assembly a lot easier than a rusty tank and what else the rust infects.
Thanks Hawkeye56
Team Owner
Joined: Jul 2004
Posts: 28,331
Likes: 3,245
From: Hartford WI
From the article
Fuel that sits in the tank all winter will damage the fuel sender card from the sulfur.The reason it targets 03 and newer is the tank has to be dropped to repair. We all know the C4 does not. I suggest you look up the article and make your own decision.
Fuel that sits in the tank all winter will damage the fuel sender card from the sulfur.The reason it targets 03 and newer is the tank has to be dropped to repair. We all know the C4 does not. I suggest you look up the article and make your own decision.
Like I said, I'm curious how it doesn't damage the sender card when you have fuel in it for normal use.
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Melting Slicks
Joined: Jan 2014
Posts: 2,176
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From: Lunenburg MA