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-   -   Fuel Stabilizer Tests (https://www.fordbarn.com/forum/showthread.php?t=352904)

David in San Antonio 10-06-2025 10:45 AM

Fuel Stabilizer Tests
 

Do you store your A over the winter? Do you put Marvel Mystery Oil or Sta-bil or Sea-Foam or something else in the gas tank? The linked video should provide endless discussion, controversy, stories of personal experiences, perhaps some outrage, the popping of bubbles and maybe, just maybe some regrets.

https://youtu.be/OHXYWxMkhog?si=73OZ_9W8GZ6AVBR6

32Ford13 10-06-2025 12:47 PM

Re: Fuel Stabilizer Tests
 

I've had Sta-bil not work as good as Startron. I've been 100% Startron for the past hand full of years and it has never given me grief

ModelA29 10-06-2025 12:48 PM

Re: Fuel Stabilizer Tests
 

I use the Sta-bil if It's going to sit for more than a couple months. I never used to but with ethanol in the gas it seems to go bad so much faster.
Try and find a place with pure gas to fill up at before you store it. Still use the additive anyway. Also a full tank will help keep rust from forming on the exposed metal.

LeonardS 10-06-2025 01:04 PM

Re: Fuel Stabilizer Tests
 

Do some research on PRI-G by Power Research Inc. I think it is by far the best stabilizer. Ever wonder how they keep the fuel fresh in those huge storage tanks? Check these guys out. www.priproducts.com

BButturff 10-06-2025 01:39 PM

Re: Fuel Stabilizer Tests
 

First, I don't use gasoline with any amount of ethanol in it in my small engines, outboard motor or Model A. I realize that some of you don't have this option but this has been the key to my never having fuel related problems. Second, I've been using Sta-bil as a medium term (1-year or less) fuel stabilizer for close to 55 years. After 1-year I transfer the gasoline to my regular cars and replace it with fresh.

Y-Blockhead 10-06-2025 03:59 PM

Re: Fuel Stabilizer Tests
 

Quote:

Originally Posted by David in San Antonio (Post 2416297)
Do you store your A over the winter? Do you put Marvel Mystery Oil or Sta-bil or Sea-Foam or something else in the gas tank? The linked video should provide endless discussion, controversy, stories of personal experiences, perhaps some outrage, the popping of bubbles and maybe, just maybe some regrets.

https://youtu.be/OHXYWxMkhog?si=73OZ_9W8GZ6AVBR6

Thanks for sharing the video. I enjoy watching Project Farm comparisons. Being in So Cal I don't store my Model A in the winter months. I do use Seafoam to help keep the fuel system clean.

My main problem is that the current fuels evaporate out of the Model A vented tank.

nkaminar 10-06-2025 05:58 PM

Re: Fuel Stabilizer Tests
 

Where I live it is warm enough in the winter to keep running my Model A. Although some days are too cold or too wet. I keep the battery maintainer connected if I am not going to drive it for a week or more. If I am going to be away for more than a month I will run the carburetor dry and put the car on jack stands to keep the tires from getting flat spots. I don't use any stabilizers in the tank and run gasoline with ethanol but I keep the tank mostly full. My car lives in my garage with a dehumidifier.

norcalal 10-06-2025 10:10 PM

Re: Fuel Stabilizer Tests
 

We in California have the worst gas for old cars. However, I have added Any transmission fluid to gas just before filling up with name brand gas, and am over six or seven years sitting without a problem restarting. Cheap, AND it works!

1928Mik 10-07-2025 08:42 AM

Re: Fuel Stabilizer Tests
 

I fill mine up with non-ethanol and put a few glugs of either Sta-Bil, MMO, or Seafoam, whatever I have on the shelf at the time...I also take the carb off and spray it out with carb cleaner. All have worked great for me.....

The Master Cylinder 10-07-2025 09:16 AM

Re: Fuel Stabilizer Tests
 

Quote:

Originally Posted by norcalal (Post 2416427)
I have added Any transmission fluid to gas just before filling up with name brand gas, and am over six or seven years sitting without a problem restarting. Cheap, AND it works!

Can we assume that is Automatic Transmission Fluid? I have heard of this before. How much ATF do you add per gallon?

Planojc 10-07-2025 09:25 AM

Re: Fuel Stabilizer Tests
 

Winter time here I just keep both cars topped off with non ethanol gas.

Bob Bidonde 10-07-2025 09:55 AM

Re: Fuel Stabilizer Tests
 

For many decades, I have been storing my A's over Long Island, New York winters with full tanks of 87 Octane ethanol gasoline in them, and no additives the likes of Sta-bil or Marvel Mystery Oil.

alexiskai 10-07-2025 10:06 AM

Re: Fuel Stabilizer Tests
 

Worth noting that the test performed in the video is a 20-month storage, so more than a year and a half, with 10% ethanol.

SAXBY2 10-07-2025 10:17 AM

Re: Fuel Stabilizer Tests
 

If any one has gas.leaf blowers and other equip. loaded up with crap gas, wait for the seals to rot and carbs clogged. We'd lose the tiny carbs yearly. Stabil does work with the fuel oil mix to keep them going. Same thing in old cars. The Farm test person does comprehensive tests on scores of products so one can see the results, rather than just rely on opinions without some back up..


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