Archives >> General Diesel (3/01)

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Turbo Brad
Member
Member # 3946
Reged: 11/23/99
Posts: 134
Loc: U.S.A.
At what temp. does diesel begin to gel?
#58005 - 11/23/99 08:33 PM

n/m

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Honest people tell the truth; tactless people tell the whole truth.

[This message has been edited by Turbo Brad (edited 11-23-1999).]

Dave Haven
Member
Member # 151
Reged: 10/23/00
Posts: 2127
Loc: near Flagstaff, AZ, USA
Re: At what temp. does diesel begin to gel? new
#58006 - 11/23/99 09:42 PM

The #2 I get from Little America has NEVER gelled on me. I'm sure it's winterized as necessary. This morning it was 4 in Flagstaff, and there was NO problem. I've heard that straight #2 will cloud at around 20.
DH

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"Big Red"- '89 F250 4X4 reg. cab; 7.3; ATS Turbo installed @ 158K; Amsoil Air Filter; 4.10; 5-speed; Westach Pyro & Boost Gauge; Autometer Oil Pressure, Coolant Temp. & Voltmeter; Michelin 235 X-Radials




Alaska Doug
Member
Member # 492
Reged: 04/06/99
Posts: 1502
Loc: Talkeetna, Alaska
Re: At what temp. does diesel begin to gel? new
#58007 - 11/23/99 09:53 PM

It varies between fuel refiners. I use 15F as a rule of thumb. Between that and zero I dump Power Service in. After that #1 is definately what you need.

JoeServo
Member
Member # 2712
Reged: 08/31/99
Posts: 773
Loc: Auburn Hills, MI
Re: At what temp. does diesel begin to gel? new
#58008 - 11/24/99 07:56 AM

I have never used additives during the winter. Have i been lucky or does it really matter if diesel gels up?

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'97 PSD CC 4x4

Turbo Brad
Member
Member # 3946
Reged: 11/23/99
Posts: 134
Loc: U.S.A.
Re: At what temp. does diesel begin to gel? new
#58009 - 11/24/99 08:03 AM

Thanks for the replies. It's 60 degrees here, so I don't think anyone where I live will have that problem. A friend of mine was thinking about taking a trip up north, and was wondering if he should worry about this.

Your replies are greatly appreciated...I'll pass this information to him.

Thanks again!

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Honest people tell the truth; tactless people tell the whole truth.

zivnuska
Member
Member # 651
Reged: 04/11/99
Posts: 164
Loc: Wichita, Kansas, USA
Re: At what temp. does diesel begin to gel? new
#58010 - 11/24/99 01:23 PM

Last winter I was stranded when #2 gelled at 15 F. It was at the beginning of the winter and the fuel was supposed to be treated but it wasn't. This was from a major truck stop in Wichita, KS.

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1999 F-350 PSD, Auto, lwb, srw, CC, 4wd, 3.73, lariat, Rhino liner, Reese 5th & Gooseneck hitch, Banks Powerpack




Alaska Doug
Member
Member # 492
Reged: 04/06/99
Posts: 1502
Loc: Talkeetna, Alaska
Re: At what temp. does diesel begin to gel? new
#58011 - 11/25/99 02:21 AM

It pays to dump in a little Powerservice or Stanadyne additive if you are a little worried.

K1VVT
Member
Member # 3189
Reged: 10/04/99
Posts: 438
Loc: Hope, ME, USA
Re: At what temp. does diesel begin to gel? new
#58012 - 12/12/99 02:18 PM

I have noticed the 'chill' factor adds to the 'temp' factor when it comes to diesel jelling, if it is winterized to 40/60 #!/#2
there shouldn't be any jelling, water another problem!.

Alaska Doug
Member
Member # 492
Reged: 04/06/99
Posts: 1502
Loc: Talkeetna, Alaska
Re: At what temp. does diesel begin to gel? new
#58013 - 12/13/99 01:55 AM

Negative- All the term "wind chill factor" does is describe a comparison between the rate unprotected human skin will freeze with a certain mph wind, as compared to how fast it freezes at certain temp without the wind. Wind chill only measures how fast heat is removed from an object, not how cold it will get. A piece of steel in a 100mph wind at -40F will be -40F and that is it.

Kevin Ferguson
Member
Member # 17
Reged: 04/01/99
Posts: 1481
Loc: Albuquerque,NM,USA
Re: At what temp. does diesel begin to gel? new
#58014 - 12/18/99 07:32 PM

"Wind chill" does matter a little...sort of.

I agree that the lowest temp an object can get to is the actual (disregarding wind chill factor) temperature. (OK it can get a little colde if exposed to clear sky on a dark night) Wind chill factor is a number that applies only to things that are kept at constant temperature (like 98.6*F)

But:
In order to gell, the the temp. of the tank needs to get down to 15* (or whatever it takes). Most of us see much lower night time temperatures than the 24 Hr. average. If it is calm, the tank will stay well above the overnight low, due to the heat stored from the warmer daytime temperatures. If, however, it is blowing like a $300 whore, then then the tank will lose heat much faster, and the fuel is much more likely to gell before sunrise.

So, The gell temperature is NOT the "wind chill temperature" but windy conditions DO decrease the time needed to gell a tank when the temperature is below the gell point. If the air temperature is _above_ the gell point, then no amount of wind will cause the fuel to gell, regardless of what the wind chill factor may be.

-KF-



big jake
Member
Member # 606
Reged: 04/09/99
Posts: 1599
Loc: sacramento,ca
Re: At what temp. does diesel begin to gel? new
#58015 - 12/19/99 12:03 AM

you lost me right after the part about the $300 whore!

big jake

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