A week ago it was about 5 degrees. I use my truck for constructions and have to use it. I drove my truck ten miles the other morning and it started studering bad. Then when I would slow down to turn it would die. I could floor the peddle and it would struggle to move at all. My mechanic hasn't figured it out. Has anyone had these problems. It's a 05 6.0 with 210,000 miles with a sinister erg delete and that's about it. Any help would be great thanks ahead of time guys

 

I have heard when it gets that cold the diesel literally gets thicker. Try adding some kind of diesel additive like rev X.

 

Some kerosene added to the diesel can help. If the diesel pump says winter mix, they probably cut the diesel with some kero. 10-20% should help. Or a pour point depressant/ anti gelling additive can help the paraffin get through the filter. Paraffin makes btu's but does not go through filters very well when cold.

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Rev x is a oil additive, not fuel. You can use 5-40 synthetic with rev-x for oil to help in cold and some sort of anti gel in fuel to keep flowing. Power service makes a diesel 911 if your tank gelled.. . Keep some in truck, just in case in winter. .

 

Look its funny you post this situation because I just went through it my srlf .gelling of the fuel is the problem if I had a opinion.I'm a newb so don't take my opinion as holy but I put the addative in and bam...issue solved. If you get diesel in a area that doesn't normally experience that extreme cold ...I would say it do to gelling. The station treat the fuel accordingly to your weather conditions . summer is different from winter diesel. So unless your conditions are such as -5 everyday vs. A once in a while cold spell were temps dropped to that crazy low....I would try getting the addative and plugging the block heater in religiously. Again . I am only a new . I'm sure there will be more qualified opinions from people more knowledgeable. Good luck!

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Oh and I have a 07 6.0

 

I drive truck in the oilfields in north Dakota so I know how miserable it is to deal with gelling fuel... Some facts I have learned are fuel has to be about 40 degrees to mix with antigel additives,(not all but most) so adding them to the fuel tank when you are already gelled up doesn't do much good. If you are in a pinch you can pull the fuel filter and dump half the fuel out and the other half with power service, or 911. The other thing is that you need to replace the fuel filter if you have gelled up. even if you get it running again. something about the paraffin in it just doesn't all the way come out or clear up and you will lose horsepower from a half-plugged fuel filter... best way to avoid it is plan ahead with the weather. just my half educated experiences.. good luck.

 

Remember fuel in the ground from fuel station is warm and flows no problem into your tank. . I run power service anti gel all winter since you never know when a cold spell comes along. . . It's a LOT easier to add when fueling and it mixes better if u add at fill up. . . I also think of half tank as empty and refuel then so I always have some anti gel in tank, and no problems running low on fuel and getting air in fuel system. ( some trucks have suction tube issues when low fuel in tank, sump coming soon!) Little things to remember will make life with your diesel easier!

 

I had forget to add ....I was down to about a 1/4 tank of gas when it happened to me and I filled the truck up once I got to a station and it got me to the store so I could put the PowerService (white bottle) in the truck . Have had no probs since!

 

Thanks guys I always run rotella t6 full synthetic with rev-x every oil change. Here in ga. It doesn't get this cold often. I own a construction buissines and I've been fixing busted pipes for 3weeks . Gotta get on e bay and buy a cord for my block heater my truck wasn't equipped with a cord ( go figure). Gonna get some additive already changed filters

 

For gelling find a product called quick flow by far the best antigel add I've found - and it does work if left to sit when ur lines are gelled up living in Canada we need this it's like franks red hot for diesels. But yea all was said that you should do ( try keep 3/4 tank if your cold in. Your area all the time ) my fifty cents