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Best way to dispose of old gas?


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I bought a used beater bass boat back in 2016.  Since I only fish TM waters, the motor hasn't been started in years.  There is probably 10-15 gallons of gas in the tank left over from when I bought the boat.    Now the wife wants me to get the motor running to take her out on the river.  I'd prefer to use new gas.  How do I safely dispose of the old stuff and clean out the tank before adding new gas?

 

Thanks,

 

Dave

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That’s a long time for gas to be setting around.  
 

 

 If it were me I’d be calling or web searching for ways to recycle or dispose of it.

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We have a Hazardous Waste Disposal shop close by, it’s a private company. The town pays for 2 gallons of waste a year per household, after that you get charged. For gas they charge $3 A POUND!

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Use a transfer pump and put it into someone’s tank that you don’t like. 😂😂😂😂 

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If the motor will run on the old gas, I would run a few gallons at a time through my truck.  If it's just old and mostly varnish, call your local dump and they can tell you what to do.

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Our county dump has a gas tank next to the dirty oil tank and next to the old paint tank, etc.

$3 to dump trash, all recycling is free and that includes up to 4 tires on wheels.

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Gas makes great weed killer….. I’m just kidding don’t do that. As others have said I am sure there is  a place to dispose of it safety. Maybe even talk to your local garage they might know I could do it for you. 
 

that’s also a long time for a motor to sit. You may have some dry rotting issues from it not being used. I would take it somewhere local, close and have. A buddy on speed dail that could come get you on the water if needed.

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Find a mechanic shop. They usually have big drums of old gas sitting around and they don’t mind disposing of gas for people. I bring my old stale gas to my mechanic, throw him $5 and he dumps all the old crap for me. 

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Properly wouldn't be the word I would use but it does work great in my fire pit to burn up brush. 

 

Allen

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20 hours ago, GaryH said:

Use a transfer pump and put it into someone’s tank that you don’t like. 😂😂😂😂 

This is actually what I do with old gas.  I just run it through my car.  The trick is, to not run too much at once.  So, for something like this, I'd probably just put in a gallon into a nearly full tank of gas.  It'll mix with the good stuff and run just fine if it's something like a 15:1 ratio, new to old.  

 

But I'd give it a good look to make sure it's not too bad.  Make sure the color is clear and it doesn't have a lot of water in it and stuff.  If it's bad enough, there's always some kind of hazardous waste disposal center you can take it to.  

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22 hours ago, PourMyOwn said:

If the motor will run on the old gas

I would not even try this.  If the gas is really bad it can cause big problems.  Keep trying to find a way to dispose of it, and flush all of it out.  

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Thanks for all the input!  I'll check with a couple local shops.  And I'll be taking the motor to be given the once over before I even think about starting it.

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Never had any issue running thru the truck. I generally dump 1-3 gallons of last years 50:1 gas/oil in the gas tank on an almost empty tank, every spring.

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I wouldn't even consider putting 8 year old gas in an engine of any kind.

 

Proper disposal is the only option.  But then again I would never have 8 year old gas to begin with.

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