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  Shelf Life of Fuel Stabilizer

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Author Topic:   Shelf Life of Fuel Stabilizer
minitauk85 posted 11-12-2005 08:15 AM ET (US)   Profile for minitauk85   Send Email to minitauk85  
I have a small bottle of fuel stabilizer in my garage that must be 7 years old, I plan on spending the cash to buy a new bottle but it got me thinking--How long does a bottle of fuel stabilizer keep?
Robob2003 posted 11-12-2005 10:02 AM ET (US)     Profile for Robob2003  Send Email to Robob2003     
On my StaBil it says it can be used up to twi years after the container is opened. I just bought it and if I read the code correctly it looks like it might have been bottled in 2001.

Bob on Tampa Bay

jimh posted 11-12-2005 10:44 AM ET (US)     Profile for jimh  Send Email to jimh     
I do not believe there is a generic commodity "fuel stabilizer" so the answer would vary with each brand and type of fuel stabilizer. As noted above, the product label ought to provide guidance.
elaelap posted 11-12-2005 07:28 PM ET (US)     Profile for elaelap  Send Email to elaelap     
Maybe you can find a stabilizer to stabilize older StaBil, sorta like:

Big fleas have little fleas,
Upon their backs to bite 'em,
And little fleas have lesser fleas,
And so, ad infinitum.*

Tony

*This piece of doggerel is a modern version of Jonathan Swift's:

"So, the Nat'ralists observe, a Flea,
Hath smaller Fleas that on him prey,
And these have smaller Fleas to bite 'em,
And so proceed ad infinitum."

Dick posted 11-12-2005 08:05 PM ET (US)     Profile for Dick  Send Email to Dick     
While at work today I checked the bottles of StaBil and Mercury fuel stabilizer that I had on the shelf.
The 32 oz StaBil states that it can be used for up to 2 years after opening.
The 16 oz StaBil and the 16 oz Mercury had no such information.
I guess that they figure that you will use the 16 oz container soon enough to not worry about it.
SpeedBump posted 11-12-2005 08:21 PM ET (US)     Profile for SpeedBump  Send Email to SpeedBump     
A timely post to be sure - I had the same thought today as I added @ 8 ounces to my freshly fill gas tanks and thought this looks a bit yellow as it left the bottle, it was from a 16 oz bottle of stabil left over from last season. I did look on the bottle and there was nothing noted about a shelf life.

Hmmm, I'll let you know if I develop any performance problems in the next couple of outings!!!!

diamondjj posted 11-13-2005 10:09 AM ET (US)     Profile for diamondjj    
I made the mistake of using leftover fuel stabilizer that was opened, putting up my motorcycle one year. It had expired but I did not notice the date until after I had added it to the fuel. The engine starting running rough and would backfire when I would throttle it. It was running fine before the old stabilizer was added. Next time, I bought fresh stabilizer. It's not worth the aggrevation.
Florida15 posted 11-13-2005 10:54 PM ET (US)     Profile for Florida15  Send Email to Florida15     
Don't chance it. I found an old bottle of StaBil on a shelf in my garage. It was in the old metal can. I thought I had bought it a couple of years ago. I squirted some out and it was brown instead of red. I e-mailed the company and they said they hadn't made them in metal containers in 10 years and do not use it. It's not worth the risk.
LHG posted 11-13-2005 11:03 PM ET (US)     Profile for LHG    
I just saw a 32 OZ bottle of StaBil at Theft Marine for $16.
I saw same bottle at Menards (A local Home Depot type place) for $8.50. At Walmart it was $9.50. The 32 Oz size is perfect for treating a full 18 Outrage tank, with 1/4 bottle left over.

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