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Depends on your fuel blend as to what temp. it will gel. If it has try adding Powerservice 911 to your fuel tank and filter as per the directions. You should also get the vehicle into a warmer environment if possible (garage). You can change the filter if that is all plugged up and fuel flow is restricted.

Good luck! Tim
 

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911 and change fuel filter would be my SOP. Most gelling occurs in the fuel filter, 911 will clear anything else.

I carry one of each with me during the winter months
 

· LT. Dan
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just geled my truck for the first time. it sucked! had to put 911 in the system and some #1 diesel, also changed the fuel filters and i was good to go
 

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23 should be fine even for straight #2. Put in some Power Service in the white bottle or other anti-gell aditive for some peace of mind and you should be good to atleast the low teens.
 

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If she does jell on you get her in a warm enviroment if possible, change the fuel filter if possible, definatly dump a bunch of additive in there(I would start with just a ton of regular additive). Keeping the truck running will put heat in the fuel, mix your fuel and additive, and burn the crap fuel out. Fill it with known good fuel too. If the fuel is very nasty and none of the above works pump out all the fuel you can, fill her with fresh, let her run, change the filter and keep her running and dumping fresh fuel and a heavy additive mix in there.

Once you gell you realy should change the filter ASAP even if you get her running OK.

JMO

How do you know if you gell and or possibly bad fuel? Truck can run like crap(ussualy low power, could be stalling), may throw a code(light) and when you try the water drain on the fuel filter(always drain in a clear container so you can inspect) you may get water, or even nothing if the thing globs up solid on you. Symptoms may also be intermitent.

It can happen all of a sudden when you get a cold snap and let your truck sit or it may happen more gradually if you get some dirty fuel(or fuel that is very cleansing and knocks all the crap in your tank lose and into your filter) If its a sediment problem then keep additive package high, and keep changing the filter as needed and adding fresh fuel.

Also be carefull when working with cold fuel. If the fuel is liquid it may still bet 10*. 10* liquid on a cold windy day on your hand can be bad news.

If you get crap fuel hopefully you have your recipt and can go raise hell at the station you bought fuel from. ;)
 

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So what has everyone else done if they have had a truck gell on em? Last time I had the issue I was about to put a few gallons of kerosene in the tank instead of diesel but I was able to get her running fine.
 

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Just put in a double dose of anti-gel, let it sit for a bit, and changed the fuel filter. Fired right up and not another problem.
 

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Had this happen to my buddy the other day. He is running HHO with 10% WVO blended in. Our weather here has been so warm, we all forget about the gelling issue. One 5 degree night changed that. My truck that had pump #2 and 10% WVO didn't gell so the additives in the pump fuel, must be the difference. We put 16 ozs. of propanol in the tank and maybe 1-2 oz. in the fuel filter cavity thru the bleed hole on top along with some fresh #2. Before you guys all yell at me, guess what Rescue 911 is made of?
 
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I've been running diesel in Illinois since 1990 and before that in the tractors. I've never gelled. I've always used Power Service in the white bottle. I called Power Service when I started using 11% soy. They said to double dose the tanks and I'd be fine. I also use Amsoils new lubricity additive since the new low sulfer diesel has come out. I put the addiitives in my 500 gal tank before filling it.
 

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DuramaxJoe;1564775; said:
How can I tell if my fuel has gelled?

Haven't had any experiance with Duramax, as we haven't had severe weather in N.E. since 2001 when we got our 1st one. When I had a 6.9 Ford, it would lose rpm at high speed during severe cold. Slow down and it would come back. Sort of like a wind chill effect. Bring it home slowly, put it in a warm shop, next day, all's well. On our Cummins, it would not run again, until it was warmed and each injector was bled.
 

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It Also helps to keep you tank full. Reduces condensation.
 

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DuramaxJoe;1564775; said:
How can I tell if my fuel has gelled?
Take a look at some of the posts above like mine witch is number 7:)

In general it will just run like crap ):h Mild will be low power or coding when your heavy on the throttle or running higher RPMs.....more sever would be stalling, or dieing or just not starting in the first place. It may act like ytou are real low on fuel and running out.
 

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I am 98% sure I gelled this morning, :(

It was -7* when I left the house... about 4 miles away from the house, I get a "limp". Pulling away from a light it surges, sets a light on the dash... Now I cant get over 2000RPM. Guess I need to run to the parts store to get some 911 and a filter, :(

This is my first tank of B20 too, :(

(2500 miles on her as well) Does this sound like gelling or could it be something else?
 

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Sure sounds like jelling, Halfbyte.
 

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I just have a heater that magnetically mounts to the filter. Got it at a truck stop. Had to use it once one night in Canada. Plugged it in for half an hour and started up a little rough but ran fine then. I think I payed 20 bucks for the heater.
 
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