Winterized fuel

mpierce wrote:

john&bet wrote:

nomad 289 wrote:

ShotinAz wrote:
At what temperature does diesel gel?

17.5 F

Problem is, the wax crystals that form and clog your fuel filter then have to be heated up to around 32F to unmelt and remix.

Don't think all Engine block heaters heat the filter/fuel pump, so I use an additive when Daytime temps of below 32 are forecast.

I must be one very lucky dude. I have never used an additive in my truck. I even drove it to Great Falls,MT. at Christmas time of '12. I have no cord for the block heater either. Several nights in Great Falls it fell to -4 and truck started right up. Never had a gelling issue going out I-70 then north or coming back via I-90 and I-80. All the way across Iowa it was 0 degrees. Truck performed as expected and it is a 2wd if that makes any difference to you 4x4 fans that insist that all tv trucks need to 4x4. JME.

At those temps, you will probably always be ok. But when it gets COLD, fuel WILL gel. I drive almost every winter at -30F, and have been driving at -40F. If you think regular #2 will be ok, go ahead. You can usually get a tow truck out in a few hours! LOL

Fuel is usualy winter ized to "local conditions". However, I can fuel in GA, and drive to ND! Might be 70 when I fuel, and -40 when I arrive! Need to do some planning here.

You are right. I did not say it never happened to me cause it did one year. Jan. '88 on I-80 in either ILL or IA. Wind chill was like -40 or -50. It was an International straight truck full of day old chicks picked up in IN. A whole lot of other trucks were having trouble that nite. We R&Red the filter and went on our way.

john&bet wrote:

nomad 289 wrote:

ShotinAz wrote:
At what temperature does diesel gel?

17.5 F

Problem is, the wax crystals that form and clog your fuel filter then have to be heated up to around 32F to unmelt and remix.

Don't think all Engine block heaters heat the filter/fuel pump, so I use an additive when Daytime temps of below 32 are forecast.

I must be one very lucky dude. I have never used an additive in my truck. I even drove it to Great Falls,MT. at Christmas time of '12. I have no cord for the block heater either. Several nights in Great Falls it fell to -4 and truck started right up. Never had a gelling issue going out I-70 then north or coming back via I-90 and I-80. All the way across Iowa it was 0 degrees. Truck performed as expected and it is a 2wd if that makes any difference to you 4x4 fans that insist that all tv trucks need to 4x4. JME.

At those temps, you will probably always be ok. But when it gets COLD, fuel WILL gel. I drive almost every winter at -30F, and have been driving at -40F. If you think regular #2 will be ok, go ahead. You can usually get a tow truck out in a few hours! LOL

Fuel is usualy winter ized to "local conditions". However, I can fuel in GA, and drive to ND! Might be 70 when I fuel, and -40 when I arrive! Need to do some planning here.

chevyman2 wrote:
I would say in OK-YES. In north to central TX-YES. In southern TX-NO. Regardless of what "might" be. Go get some "diesel emergency 911" that stuff is awesome.

The 911 stuff in the red bottle is only supposed to be used in an "emergency". You should use the stuff in the white bottle for daily driving.

As an Iowa farmer, I can tell you that it is no fun to have a diesel gel up in very cold temperatures. I would recommend that you add some diesel flow or 911 just to be safe. Some stations cheat on their winter fuel mix. As said above, you have to remove the fuel filters to get them to flow again. Been there, done that!

I think what it means is that the fuel you bought was adequately treated for the temps you drove in. That's the way it's suppposed to work.

Remember, the truckers drive those routes every day and they depend on the truck stops to have fuel that won't jel.

And if I was you I would not switch from the current place you're buying fuel in your home area during winter because they're obviously doing a good job too.

I used to live in Iowa and in winter I always bought my fuel at truck stops. That pretty much solved my jell problem. The in-town stations didn't turn over diesel as fast and I think that meant they were always behind the curve on carrying fuel that was adequately treated for the current temps. This was 30 years ago when there were not as many diesel passenger vehicles as there are now. Even now, when it gets to be REALLY cold, I would still be looking for a high volume truckstop to get fuel.

One of the differences between gas motors and diesel motors in winter is that once you get a gas engine started in subfreezing weather, you're usually good to go.

But a diesel is different. If you plug in that block heater, the engine may very well start and run just fine. Maybe the underhood warmth from the block heater has warmed the filter too. But once you start running down the road, that cold fuel from the tank starts flowing and rapidly cools down the filter (especially on a highway), and can lead to the fuel jelling up if it's not treated. And that may happen several miles down the road. Ask me how I know. GRRRRRRR.

Tim

nomad 289 wrote:

ShotinAz wrote:
At what temperature does diesel gel?

17.5 F

Problem is, the wax crystals that form and clog your fuel filter then have to be heated up to around 32F to unmelt and remix.

Don't think all Engine block heaters heat the filter/fuel pump, so I use an additive when Daytime temps of below 32 are forecast.

I must be one very lucky dude. I have never used an additive in my truck. I even drove it to Great Falls,MT. at Christmas time of '12. I have no cord for the block heater either. Several nights in Great Falls it fell to -4 and truck started right up. Never had a gelling issue going out I-70 then north or coming back via I-90 and I-80. All the way across Iowa it was 0 degrees. Truck performed as expected and it is a 2wd if that makes any difference to you 4x4 fans that insist that all tv trucks need to 4x4. JME.

ShotinAz wrote:
At what temperature does diesel gel?

17.5 F

Problem is, the wax crystals that form and clog your fuel filter then have to be heated up to around 32F to unmelt and remix.

Don't think all Engine block heaters heat the filter/fuel pump, so I use an additive when Daytime temps of below 32 are forecast.

I use additive this time of year (central Illinois). When we take off for Florida shortly I will still use it all the way through Georgia, just in case.

Generally I stick with major truck stops when refueling. I guess my thinking is that they may have a slightly better winter blend since many of their customers are traveling cross country.

Shot-N-Az wrote:
At what temperature does diesel gel?

Straight #2 it is around 20 degrees, but with winter blends you can go much lower.
I use Opti-Lube XPD and it also resist gelling.

At what temperature does diesel gel?