jet fuel

[j.m.mcfly]

anyone running jet fuel in there trucks

 

[OHale]

Nope. I didn't see it in my 04. 5's owner's manual as an alternate fuel. My '95 12V listed several grades of JP that it could use. JP is pretty pricey, isn't it?

 

[JApol]

Civilian use JP is a little bit more than diesel but the government deal on it is about $1 a gallon.

 

[j.m.mcfly]

do you think it is safe in a 3rd gen truck

 

[Copterdoc]

Yes, When a little Lube is added. Stanadyne lubricity formula works great.

 

[JARichard]

Yes, When a little Lube is added. Stanadyne lubricity formula works great.

Just looked at your gallery, Are you a Rotorcraft mechanic. It looks like one of their birds in one of your pics.

 

[Copterdoc]

No, Big Blue

 

[OHale]

Cummins is pretty good about answering emails with technical questions. I would drop them a line and ask about what specific grades might be OK for your engine. I do recall my 2nd gen owner's manual listing specific jet fuels for use in that engine.



At $1 a gallon, if you could burn JP that would be great!

 

[CumminsBu]

The flash point on Diesel is 140* and as long as the flash points is aroung 140* it will work.

 

[BMH95]

It depends on which jet fuel. I believe the only one that isn't ok (per my owners manual) is JP4. Also, it says not to run it for very long, as it doesn't have the same lube qualities of #2. My manual lists about 10 different fuels that will work.

 

[Alan Reagan]

Jet is more like #1 (kerosene) with Naptha. Lubricity is low.

 

[DieselFiend]

I'd imagine lubricity in jet fuel would be pretty low. Aircraft jet engines need flow rather than lube to run. We've dumped JP-8 in diesel engines before when we needed to with no ill effects but I wouldn't put it in my own truck.

 

[Alan Reagan]

JP-8 has more lubricity than JP-4 because it has less Naptha. In the older mechanical (P-700) pumps, it was not as big an issue to mix jet fuel and diesel. There was enough sulphur in the older #2 to ensure lubrication on the pump. Just check the Cummins recommendation for running kerosene (#1) and you'll get an idea of how to mix or how long you can run #1 without damage. Extremely cold weather is the only time I would attempt to run it just to lower the gel point. Jet has icing/gelling inhibitors.

 

[JApol]

The flash point of JP-8 is 100*F while JP-5 is 140 *F

 

[pservano]

The flash point of JP-8 is 100*F while JP-5 is 140 *F

JP-5 is used for US NAVY Fighter plane (i. e. F-14 TOMCAT, F-18, S-3 Viking)...

 

[FLynes]

JP-5 is also the backup fuel to use on a UH-1H, JP-4 and JP-8 being the primary fuels (I was a crewchief a long time ago). There's no point in using aviation fuel in your diesel. It doesn't give you any extra oomph, and it might very well ruin your internals... . at least on these new Gen 3 motors.



Frederic

 

[Cummins Thunder]

JP-5 is also the backup fuel to use on a UH-1H, JP-4 and JP-8 being the primary fuels (I was a crewchief a long time ago). There's no point in using aviation fuel in your diesel. It doesn't give you any extra oomph, and it might very well ruin your internals... . at least on these new Gen 3 motors.



Frederic

I think they are just tryin to be cheap...

 

[raf2000]

Ran lots of JET A in my 2000. Added 5% lube and no problems. Neighbor gets it for free from the airport. Have not tried it in my brand new 06. . Engine stalls when cold, little less power and about 3 mpg loss. .

 

[AKaiser]

Military runs JP-8 in combat zone

This is done to simplify the supply chain. It is hard on engines, however. It is especially hard on the 6. 5 L GM Turbodiesel in the M1114 Up-Armored HMMWVs. We keep spare crate motors to replace them.