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Diesel Fuel Gel test - Pwr Srvc, Howe's, Schaeffer

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  #76  
Old 01-11-2014, 08:12 AM
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Great Experiment. I haven't added anything to my fuel I'm starting to think I've been lucky having no problems. Next cold snap I think I will try doing it here. I have no idea what is in our diesel the pumps just say diesel.
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  #77  
Old 10-25-2015, 01:51 PM
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winter is coming around the corner. Time to get your powerstroke prepared.......
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  #78  
Old 10-26-2015, 12:49 PM
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So the verdict on anti-gel, anti-cloud additives is..... ?
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  #79  
Old 10-26-2015, 12:59 PM
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Originally Posted by ExPACamper View Post
So the verdict on anti-gel, anti-cloud additives is..... ?
Either us an additive or a mix of #1 and #2 diesel when the temps get below 10 degrees if you park your vehicle outside.

The key with the additive is to get it in the fuel before it hits the cloud point. Once it starts to cloud the additive is not very affective at reversing the process. And always carry a bottle of 911 or equivalent. When you see or feel any signs of gelling (fuel press drop/power loss) dump it in there ASAP.
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Old 10-26-2015, 01:03 PM
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I tend to go with the additive on the 7.3L's since it is more cost affective for me. #1 Diesel can sometimes be as much as $1 more than #2 here.
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Old 10-26-2015, 01:26 PM
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When you say #1, around here #1 is Kerosene, #2 Diesel Fuel, #3 Fuel oil.

Same thing you are referring to?

Which additive do you prefer for cold temps on your own truck?
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  #82  
Old 10-26-2015, 11:55 PM
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Originally Posted by ExPACamper View Post
When you say #1, around here #1 is Kerosene, #2 Diesel Fuel, #3 Fuel oil.

Same thing you are referring to?

Which additive do you prefer for cold temps on your own truck?
Yes, Diesel #1 and Kerosene are very closely related but not exactly the same.
#2 Diesel 2-D
#1 Diesel 1-D
Kerosene K-1

Kerosene has a few less hydrocarbons.

I used this one during the winter:





At my brother-in-laws farm we have the fuel tested. For @ $35-$40 we find out what actual temperatures we can expect to be able to operate in.
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Old 10-27-2015, 12:09 AM
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Here i a copy of one of the tests. This diesel sample had the Schaeffer's Winterized Dieseltreat additive added into it.



It shows the cloud point at 10F and the cold filter plug point at -22F. But there is a catch (there always is) .This does not mean the fuel will gell at or below -22F in my 7.3L. Keep in mind that the CFPP (cold filter plug point) determined by the ASTM D6371 test uses a 45 micron filter. IIRC the fuel filters in our 7.3L Powerstroke is 14 microns and some of the newer diesels are 2 microns. So the CFPP will actually be much different.

This is also the problem with some of the marketing on these products. read the back of the bottle and see what some companies claim there product will do. Unfortunately the ASTM D6371 standard is pretty old and IMO can no longer be applied to newer diesel engines. Each company is following the standard test, but unfortunately the standard does not apply to our vehicles.
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Old 10-27-2015, 09:08 AM
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How much do these tests cost? How long does it take to get results?
As for the CFPP, could you request that they test with a "tighter" filter instead?

According to the above results, the cloud point +10F and the CFPP is -22F. Lets assume, for arguments sake that the CFPP is accurate. (even though I understand why its not) So, we are saying that at -22F, the filter is plugged. The truck won't run. Pretty simple and clear cut.
But, there is a 28deg swing between cloud and CFPP. At what point will the truck technically still run, but not in an acceptable manner? at what point will it run acceptably ("good enough"), but with degraded performance?
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  #85  
Old 10-27-2015, 11:14 AM
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The gel point of straight #2 (summer blend) I believe is @ 17 degrees F, the cloud point around 23F. If I remember correctly, on my phone and standing in a corn field right now so bear with me.
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  #86  
Old 10-27-2015, 11:20 AM
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So my simple math way to guess the danger point of treated #2 fuel is this:

Our stock fuel filters are 3 times more restrictive than the 45 micron filter used in the ASTM TEST. 14 microns to 45 micron.

So I'm only calculating or using 1/3 to 1/2 of the gel point reduction from the fuel test. Which brings me to somewhere between 0 and -10F

Does this make any sense?
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  #87  
Old 10-27-2015, 11:57 AM
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Carguy3j, almost forgot to answere your first question. It cost @ $35-40 and it took about 7-10 days and this is including the 3-4 days for the mail.
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  #88  
Old 10-27-2015, 11:59 AM
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Here is another thread that gets into more of the details about winter blend diesel fuel and how it is more region specific. Why those that drive up from the south on a different blend and occasionally encounter problems.

https://www.ford-trucks.com/forums/1...additives.html

I'm not even sure what the fuel filters micron rations are on the 6.0L, I need to look into that before December .
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Old 10-27-2015, 12:40 PM
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....Why those that drive up from the south on a different blend and occasionally encounter problems.
TRUE statement right there!!!

It was about 36hrs since I bought my Excursion in Miami that my fuel was frozen up in Erie, PA
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Old 10-27-2015, 01:33 PM
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I use shaeffer products but how much of this fuel conditioner do you have to buy to be able to use it. Hate to buy more cases of oil just to get it. that's there problem.
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