Can't siphon gas out of truck - F150online Forums



Can't siphon gas out of truck

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  #1  
Old 04-03-2006, 03:37 PM
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Can't siphon gas out of truck

My truck has been sitting for 3 months solid due to an engine change. This past weekend I was going to siphon the gas out because I didn't want it going bad. I cannot get past about 12-16 inches before the hose hits something. I'm thinking this is some type of theft prevention - to keep perps from ripping off your gas. Am I right or not? And, how long do you think gas in the tank will keep until it really goes bad?
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Old 04-03-2006, 04:03 PM
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It will set for a few months. Best thing to do is to throw some StaBil gas stabilizer in it and slosh it around a bit. I've never had any trouble when using it.

WV
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Old 04-03-2006, 04:04 PM
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I used to have my 99 sit every winter for 6 months with no problems. I used stabil in it.
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Old 04-03-2006, 11:31 PM
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Indeed, StaBil. It's not worth it to try and drain it.

-Joe
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Old 04-04-2006, 12:11 AM
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Don't these trucks have an anti-siphon valve in them? Likely what you hit. Put some StaBil in it and forget about it.
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Old 04-04-2006, 11:57 AM
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Appears the consensus is to add stabil to the tank. Thank everyone.
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Old 04-04-2006, 01:26 PM
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Quote:
Originally Posted by Danieldd
Appears the consensus is to add stabil to the tank. Thank everyone.
Indeed, but there's more to it I neglected to address in my first response.

Even if you can siphon the tank dry (which is darn near impossible anyways) any remaining fuel in the system will, over time, form gum and varnish deposits. It's just not possible to get 100% of the fuel out of the system. Draining the tank can help prevent the tank from getting gummy, but fuel stabilizer will reach the ENTIRE fuel system and help prevent the fuel from breaking down and forming gum and varnish deposits.

A fuel stabilizer (Sta-Bil being the most popular and well-known brand) really is the way to go. I use it in my lawnmower, snowblower, used to use it in my boat, use it in my jet ski... anything that sits for extended periods of time.

-Joe
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Old 04-05-2006, 10:56 PM
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i fill my tanks full of fuel and add stabil to avoid and air pocket above the fuel where the tank could rust, if it is a STEEL tank. otherwise if it's plastic i keep the fuel/stabil mixture level low so there isn't as much old gas to run through when it comes out of storage.
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Old 04-05-2006, 11:52 PM
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it might be worth it to change the fuel filter after you run through that old tank.
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