Greetings folks, I have a friend who recently purchased a knew to him 04 2500 SLT. He has access to sumped jet fuel and was wondering what if anything he could add to it so he could run in his truck without destroying his injection pump. I called stanadyne and they do not offer an additive. Just was wondering if there was anything out thare. Thanks, Brian

 

it's up to your friend... but I run 30% waste motor oil filtered to 1micron & dewatered with standard #2. He could run higher percentages since its jet fuel. As an alternative, he could run TWC3 better know as 2 stroke motor oil mixed with the jet fuel.

 

if you can find 20% biodiesel blend it 50-50 with the jet fuel

 

I ran JP5 straight with a quart of 2 stroke for a while, it did ok, but whenever the engine was cold, it would smoke white really bad when I would let off, not enough heat to ignite it all the way.

I'd run 50/50, or if you run less, I'd run some 2 stroke. It is really dry. Make sure that you have a good water filtration system, jet fuel seems to be contaminated with water a lot.

I have a vid around here somewhere with my white smoke problem with the JP5, if I can find it, I'll post a link.

 

I wouldn't run any percentage of waste oil in a HPCR system, but thats my .02.

2 stroke would be the best additive to increase the lubricity, otherwise Jet fuel is just Kerosene, with a lot of additive.

It wouldn't hurt to cut with some #2.

 

Depends on why he is wants to use it. At work we run a 15% JP5 with diesel to keep the fuel from building up wax in the storage tanks and has no effects to the engines.

 

Don't know about your truck, but I ran jet fuel often in my Olds Delta 88 with zero problems. No discernible difference in performance. The exhaust did smell a bit different. Did not cut the fuel with anything.

 

The biggest difference is that there is zero lubricating properties in JP5. It has less BTU's also.

 

All of our equipment at work run's on JP8 and alot of our generators are cummins powered older 12v of course. it is my understanding that most diesels will run but as madhat said it has less btu which equals less power.

 

Our injection pumps are fuel lubricated. Straight JP5 will burn it up.

 

2 stroke or marve mystery oil would work well. Our tugs run on jet a all them time for a long time with no additive.

 

if it has less BTU's, and you have to mix it with god knows what, what are you really gaining out of running JP8? I thought the contrary of the jet fuel theory, truck+jet fuel= hauling edit, however I knew it lacked lubricity but does it really make a difference performance wise? if it makes more of a difference than B20/B50 with diesel kleen and cetane booster then i'll try it.

 

Dang, man, couldn't you have just said 'butt' and kept me from having to edit it?

If you are getting the JP5 for free, then a quart of 2 stroke per tank ain't that bad.

This is what I was talking about with the white smoke. It would do it when I let off after WOT or close to it. Truck ran fine, never noticed any problems. As soon as I put regular diesel back in, it stopped.



Like I said, I just don't think that there was a problem, the fuel just was not getting hot enough when I let off to ignite it fully.

 

Guys, be careful not to mix oranges and apples here. For me when I refer to jet fuel I was talking about JP 3 or 4. JP 5 or 8 is almost a different animal with very much different BTU's and especially lubricating properties.

 

Good post, Stan.

On older diesels, the injection pump is lubricated by the engine oil, requiring no lubricating qualities from the fuel. On newer pumps, they need the fuel to cool and lube them.

The older jet fuels were not designed to be lighter than water, so they had lubricants added in. This new stuff is so dry that it will evaporate like gas does.

In jet engines, the fuel is injected and burns a lot differently than in our trucks. Therefore, you need to know what you are burning (5, 8, or A), and know how it is made/what is in it.

Hope that's kinda clear...