[sqpdbill]

I have been using Stanadyne for months based on discussions on this forum and the advice of a local diesel pump service company. I am a believer. Today I was surprised, the Stanadyne I keep in the truck bed was frozen! I mistakenly thought one of the benefits of Stanadyne was to help the fuel flow in winter, along with the lubrication benefits and aiding with the filtering of water in the fuel. Yesterday it was -10 F most of the day and my truck was sitting in a parking lot. It started right up, but after a brief wait, battery charging at a normal rate and the high idle working I started my drive. Going up the first incline there was a major power loss, the little engine light came on and ther was no power above 2K RPM. Having a Hypertech tuner installed, I used that to clear the code, P0087, after which the truck ran normally. Could the Stanadyne have created the problem by freezing in the fuel line and plugging the filter?

 

[BudTX]

Which Stanadyne formula were you using?

 

[sqpdbill]

Which Stanadyne formula were you using?

I am using the Performance Formula.

 

[BudTX]

I was willing to bet that you were using the lubricity formula. That's why I don't make a living in Las Vegas...

The Performance Formula should stay liquid well below -10. I don't know why you encountered what you did, but it does sound like the fuel was trying to gel up on you.

http://www.stanadyne.com/new/ppt/showfile.asp?id=719

 

[fishdmax]

Performance Formula directions say "store above 32ºF"

 

[RYDNHI4x4]

it might be also that stanadyne needs diesel fuel mixed together so it doesnt freeze.

 

[speedster]

it might be also that stanadyne needs diesel fuel mixed together so it doesnt freeze.

That is what I was told by my dealer,and I think he is right??

 

[obsolete]

True. The additives will freeze when not mixed with diesel.

 

[sqpdbill]

I guess I should have read the container! So the opinion seems to be that the Stanadyne, when mixed with fuel, would not be the cause of the lack of fuel pressure, but my problem might have been fuel gelling. Any ideas about the temp that fuel would gel? Maybe our friends in Alaska or Canada have some experience. What do you guys add to prevent gelling?

 

[eggsack]

Kerosene

 

[Got Juice?]

I guess I should have read the container! So the opinion seems to be that the Stanadyne, when mixed with fuel, would not be the cause of the lack of fuel pressure, but my problem might have been fuel gelling. Any ideas about the temp that fuel would gel? Maybe our friends in Alaska or Canada have some experience. What do you guys add to prevent gelling?

#2 Summer will gel at around -9 C
#2 Winter seems to work on it's own to about -35C

It's a crapshoot.

With Stanadyne in Winter fuel, I have had no gel issues at -47C
With Stanadyne in #2 summer, it only works to -15C

I believe the higher Kero content has a lot to do with it's effectiveness as an anti gel addative.

I have had some winter fuel (probably a bad blend) turn to jelly at -20C

To stay safe, I just pay the money, use the addatives and have reliable starting.:

 

[doswacko]

I have been using Stanadyne for months based on discussions on this forum and the advice of a local diesel pump service company. I am a believer. Today I was surprised, the Stanadyne I keep in the truck bed was frozen! I mistakenly thought one of the benefits of Stanadyne was to help the fuel flow in winter, along with the lubrication benefits and aiding with the filtering of water in the fuel. Yesterday it was -10 F most of the day and my truck was sitting in a parking lot. It started right up, but after a brief wait, battery charging at a normal rate and the high idle working I started my drive. Going up the first incline there was a major power loss, the little engine light came on and ther was no power above 2K RPM. Having a Hypertech tuner installed, I used that to clear the code, P0087, after which the truck ran normally. Could the Stanadyne have created the problem by freezing in the fuel line and plugging the filter?

I was in my place in vermont this week at 0 degrees and my case of stanadyne performance formula stayed nice and liqiud outside .

I have no ideas why yours would freeze.

 

[rtquig]

I was in my place in vermont this week at 0 degrees and my case of stanadyne performance formula stayed nice and liqiud outside .

I have no ideas why yours would freeze.

I had a bottle that I kept in the storage compartment of my fifth wheel travel trailer so I would have it on the long trips. Last week when it was cold, I remembered it was there, took it out and it had gelled up. Put it in the garage and it cleared up.
Where I fuel up, the Diesel is good to -11F, with the Stanadyne I should be good to at least -40 with the winter fuel and I doubt I will ever see those temps unless I go the New Hampshire for skiing.

 

[guybb3]

unless I go the New Hampshire for skiing.

Just got cold enough up there to make snow in the last couple of weeks!!!!

 

[Ben46a]

i noticed that my stanadyne performance had gelled up as well . So i dumped a quart of 2 stroke oil i had in the toolbox in instead. I noticed the little bit of Caterpillar additive i had left was still quite fluid. This was at -24*C. I Think from now on i wil stick to the caterpillar stuff, as i get a good deal on it and it is a demulsifyer etc as well. If its good enough for the New cat common rails its good enough for me.