Got to -5F or so. Truck started right up. Made it about 2 miles when it started cutting out & then died. I knew right away what it was, so I pulled the fuel filter, poured in 1/2 bottle of 911 & other half in the tank. After waiting five minites, started it up with no problems. Could not believe how good the 911 works. BTW I was down to a 1/4 tank of fuel, which I'm sure did not help. I then Ran the truck for about 10 miles & fueled up.

After fueling up, the truck started spewing fuel out of the fuel filter. I could see where the o-ring was extruded. After pouring in the 911 I just screwed the old filter back in. I only hand tightened the lid. Can the o-rings not be reused? Did it leak because I did not tighten down the fuel filter lid tight enough?

Is the new fuel & 911 that was mixed with the 1/4 tank going to adequately winterize my fuel? It's supposed to get to subzero again tonight & truck is going to be parked outside.

The truck was starting good all of last week at lows down to 10F or so, but the -5 must have gotten to it.

 

Sounds more like the o-ring wasn't properly seated.

 

No doubt about that. But why did it stretch to where it did not seat right? Are they really reusable or after they have been in service & you remove the lid, should they be replaced?

Also, I bought another fuel filter to replace the o-ring (did not want to replace teh existing filter as it only had 1000 miles on it). When I replace the filter I now need an o-ring. Anybody know what size/material the o-ring is? Or, can I just replace the filter & leave the old o-ring in?

 

You should replace the fuel filter after any gel condition. The wax is still in the filter media. Also when you bought a new filter, it should have come with a new o-ring. You need to replace the o-ring as well, as you may have streached it or damaged it when you first removed the old filter.

 

Seems to run OK now - ran it for 20 miles since I cleared up the gelling. Should I replace the filter now or is any of teh wax from gelling redisolved?

 

If you get the fuel warm enough the wax will melt and you wil be fine. What that temp is, I don't know. Letting the filter sit in warm fuel for a little while should be good enough. I have personally done this with filters that are clogged from gelled biodiesel. It does take a higher temp than the normal gel temp of the fuel, but once it's melted, your good to go. KD