diesel fuel gelling

So I've always heard stories of fuel gelling in cold temps. My question is as it warms up will the fuel un-gel itself or is a complete fuel system cleaning required and old fuel purged?

it will ungel on it's own

i have good luck with 5 gal no1 kerosene in 20 gal diesel better than treatment

Yes the fuel will, do not know if filters would unplug once plugged.

Yes, it will on its own when it gets warm enough. I treat mine all year long in the trucks and tractors using either PS or Howes. Every time I add fuel, or just refuel. I don't have problems that way. I hear fellas say never necessary to treat it because its treated from the refineries. More than once in the past not treating it, I've gelled/waxed up. It aint fun limping down an Interstate at 20 MPH because the injectors on your Cat or Cummins are near closed, and then it still takes time for the 9-1-1 or whatever you have available to do its job, and that's after you limp into a truck stop at the next exit 20 miles down the highway. Been there, done that more than once and have no intentions of ever doing it again. So when I hear fellas say it aint necessary or call additives like PS or Howes snake oil...good for them. I've never had that problem again treating it all year long. One I still haven't tried is a quart of ATF every 100 gallons to keep the injectors clean and lubricated. Know fellas that have for hundreds of thousands or millions of miles that swear by it, and figure they should know. I just haven't yet, but mean to give it a try.

Good luck.

Mark

Fuel will thaw back out but the filters are hosed at that point. We always tell the drivers at work to just let the truck idle for a while and that will help when the warm return fuel gets back to the tank. You always need to treat diesel fuel in the winter or it will gell

Pretty sure once the temp warms up the fuel will flow just fine. We don't have that problem up here in the great white north where our fuel suppliers only sell fuel that will flow all winter. If you happen to get caught with summer diesel in your tank when the cold weather hits then I just mix in a little "Polar Max" thinning additive. It has got me through winter just fine.

TC-W3 2-stroke oil, at 200:1 (quart per 50 gallon) will put the wear scar on the fuel lubricity test where the engine manufacturers would like the standard to be. When mixed into fuel straight out of the refinery that hasn't had any lubricating additives put in it yet.

Stay away from the ATF in diesel fuel if you got common rail fuel or an otherwise high pressure fuel system. The defoamer in the ATF will cause your injectors to stick. I worked on this issue on field units. We would see injectors failing at 500-1000 hours of operation. Every time, it was due to guys running ATF for lubricity. Once they stopped, the problem never came back. Stay away from ATF in diesel fuel. You don't need added lubricity.

Change filters and dump and stir E15, a gallon or two. My friend did this to service semis.

If the filters are plugged do to diesel gelling they will be fine again once they have warmed up enough for the wax to melt. The reason for changing the filters is to allow treated fuel to flow through them right away to get the engine running again. If you have time to allow the filters to warm up there is no reason to change them due to fuel gelling.