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'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

Thread: Think I gelled up. What you think? Reply to Thread
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  Topic Review (Newest First)
02-02-2019 12:17 AM
ArcticDriver I was only asking if you called to see if others reported an issue.

Name brand stations won’t lie about that if they had an issue. Its all covered on their insurance.
02-01-2019 07:51 PM
brian6674 No I did not call. I don't gamble. But I would be willing to put allot on the table that I was not the only one. Just very thankful I have a 7.3. Could not Imagine the damage this would cause to a modern common rail system.
02-01-2019 07:29 PM
ArcticDriver Interesting.

A high volume station should have the most recently blended diesel for anticipated weather conditions.

Did you happen to call them to ask if others reported issues?
02-01-2019 07:09 PM
brian6674 It is a Sunoco. Has three semi slots with satellite nozzle on the other side. I liked filling up there because it is in a convenient location, right off the e-way. And they have the large nozzle pumps! Always a rig or two there. A garbage truck company, the big ones that lift the dumpster up and over, must have an account there. If I don’t get there by 5:45am there is a line up of them. Been filling up there for over 12 years. This was really the first problem I had. I am thinking I just got a "Monday" batch of fuel. And bad timing with this polar vortex.
02-01-2019 05:53 PM
ArcticDriver Your description of the fuel drained from the fuel bowl as being “cloudy” is very helpful.

I think I was wrong to dismiss the probability of gelling. What you describe does sound like wax formations in the diesel fuel.

You were very lucky to have made it back to your garage but I think you made your own luck by being so alert to your truck and taking immediate action.

Thats a good idea to run this tank out and refuel with fresh diesel along with PS White Bottle.

As Denny suggested above, that 9-1-1 is designed to go directly into the fuel bowl at 50/50.

I wonder if other diesel owners had problems with that batch of fuel. Was it a name brand station?
02-01-2019 05:44 PM
brian6674 I added half 32oz bottle of white, right before I filled up. I added the 911 on the side of the road, parking lot, full 32oz bottle to the full tank. I did not add any to the filter because I did not want to shut the truck off. Also it was 5:30am and dark and -11. All I was asking it at that point was to get me the 1 mile drive home. And it did do that at least. Right before I added the 911 she was idling VERY rough. And every time I touched the throttle it made thing worst! It improved the problem enough I was able to limp it home. And at light throttle positions ran/sounded fine. Only heavy throttle would make it stumble/cakle.


Later that night I pulled it into the garage and turned the heater on to 70 deg. A few hours later took it out for a drive. Ran great. Took my fuel sample from the fuel filter. Looked for water. No water could be seen. I then added the remaining bottle of white PS. Drove for a few days. Added 7 gallons of fuel and about 1/4 bottle of white PS. Gelled again and added another 32oz of 911, Was just a tad under 1/2 tank. Only took about 15 minutes and truck was drivable again. Only have about 1/8 tank now. Going to run down as far as I dare and fill back up at different station.
02-01-2019 11:11 AM
DENNY When did you add the Powerservice? Once the wax starts to drop out of solution you usually have to warm the fuel for it to go back into solution. The 911 instructions for gelled fuel is to fill the filter bowl 1/2 full with 911, I suspect at that strength it would help unclog the filter.
DENNY
02-01-2019 07:40 AM
brian6674 After the first time this happen, after I warmed the truckin the garage, I did drain the filter. I did not open and inspect the filter though. I drained the fuel into a clear jar. I did not see any water in the bottom of the jar. Yesterday morning when it was -14 I did have a look at the fuel in the jar. Did not think much of it at the time. But when I got home it was +4 out. The fuel in the jar was clear! There was still a blob of cloudy fuel in the center of the jar. But once I disturbed the jar it got mixed up. I was very shocked to see just how clear the fuel had become. I did not payattention to the cloudiness of the fuel after I drained it. I only looked for H2O beads resting on the bottom. This fuel was treated with ~16oz of powerservice white. That should have been good enough for 50 gallons, per instructions. Pulse it had 32oz of 911 in it as well. It should not be cloudy at -14 with white and 911 should it? So I just got a bad batch of fuel I am thinking now. It is going to be in the +40s this weekend. Going to run this tank as far down as I dare. Then fill up at a different station.
Michigan was having anunusually warm winter up to this point. We went from the 30/40s with low of 18s to -11 in a three day period. Then down to -17, that was the lowest I saw anyhow.Wends we had a high of -6. On the way home from work I counted 5 semi on the side of the freeway.
01-31-2019 02:35 PM
ArcticDriver
Quote:
Originally Posted by brian6674 View Post
Quote:
Originally Posted by bugman View Post

Diesel 911 will help with gelled fuel and do nothing for the fuel pump except allow it to pump the fuel to the engine.
What keeps biting at me is I have not had a gel problem in 12 years. I have always used the PS white bottle. Thought I had a system down. Say the station filled there tanks with #2, then failed to add anti gel. Would a normal dose of PS white bottle be enough for -10 or below?
All stations use #2 with additives today. The old practice of blending in #1 is no longer common except for maybe a few old school stations in ND and Northern WI but even there it is more likely they simply have #1 pump next to #2 and let the consumer mix his own blend.

#2 fuel is constantly treated for various cold temps. This is done at the refining stage when choice of base stocks are chosen and then again when chemists test the finished raw diesel to determine how much additive is required for anticipated weather conditions.

Additives are expensive so the goal of the bulk supplier is to add just enough to meet weather conditions while keeping their price as low as possible to the resaler.

Adding PS white bottle to a winter blend #2 should be sufficient for -10*F.

The 9-1-1 is purely alcohol designed to remove water in fuel. It is discouraged to use 9-1-1 on a frequent basis because alcohol is not good on injectors. Follow directions on container exactly.
01-31-2019 02:25 PM
ArcticDriver
Quote:
Originally Posted by bugman View Post
There isn't a station out there that could answer any questions about the fuel in their tanks. All they have to do with it is to take your money. Any additive it put in by the distributor at the bulk tanks and 99% of all the stations get their fuel from the same bulk delivery folks.

If you want to see what your fuel will do, get a sample of it and put it into a clear jar and then put it into your freezer and watch it to see what it will do.
Agreed.
Service station attendants can tell you what their soda prices are but not fuel treatments.

As suggested, fill a clear glass jar with a bit of fuel at fill up and set outside your home away from direct sun. Watch if it gels.

My guess is it won’t.

Gelling issues are largely a thing of the past as long as you buy fresh fuel from a local station.
01-31-2019 02:21 PM
ArcticDriver 9-1-1 removes water. That is its entire chemical function.

Although your symptoms are similar to gelling, I do not think you were gelling. Your regional diesel distribution facility would have already planned for frigid temps and combined with the white PS bottle and 9-1-1, it is very unlikely you had gelling. (Assuming you followed proper mixing instructions and did not have alot of summer fuel left in the tank).

Have you drained your fuel bowl into a clear jar and looked for water?
01-31-2019 12:56 PM
DonWarkentin
Quote:
Originally Posted by brian6674 View Post
Thanks! Looks like I am going to have to fill up at a different station in the winter. I asked the cashier "How cold is your diesel treated for?" all I got was a blank look.

What keeps biting at me is I have not had a gel problem in 12 years. I have always used the PS white bottle. Thought I had a system down. Say the station filled there tanks with #2, then failed to add anti gel. Would a normal dose of PS white bottle be enough for -10 or below?
Ask around until you find a cashier who knows how cold their diesel was treated for, then stick with that station. If you can't find one who knows how cold their diesel was treated for, then you may be stuck with using the fuel treatment.
01-31-2019 09:32 AM
bugman There isn't a station out there that could answer any questions about the fuel in their tanks. All they have to do with it is to take your money. Any additive it put in by the distributor at the bulk tanks and 99% of all the stations get their fuel from the same bulk delivery folks.

If you want to see what your fuel will do, get a sample of it and put it into a clear jar and then put it into your freezer and watch it to see what it will do.
01-31-2019 07:08 AM
brian6674 FYI: -14 all night. Truck sat outside plugged in. Ran great for the drive into work! Only change was the addition of the 911 to the tank the day before.
01-31-2019 05:28 AM
brian6674
Quote:
Originally Posted by bugman View Post

Diesel 911 will help with gelled fuel and do nothing for the fuel pump except allow it to pump the fuel to the engine.
Thanks! Looks like I am going to have to fill up at a different station in the winter. I asked the cashier "How cold is your diesel treated for?" all I got was a blank look.

What keeps biting at me is I have not had a gel problem in 12 years. I have always used the PS white bottle. Thought I had a system down. Say the station filled there tanks with #2, then failed to add anti gel. Would a normal dose of PS white bottle be enough for -10 or below?
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