Can JP8 Be Used On Cars that Use Gasoline?

JP8 fuel is likely result in immediate problems in a gasoline engine.

There is lots of data on use of jp8 in diesel engines.

The importance you note of this project suggests that even from just a CYA perspective, more than posting a query in CR4 is called for.

Thank you for your kind reply, but for all other participants who might have professional knowledge on it, i appreciate if continue this discussion.

thank you all for your suggestions.

Noah

Googling "JP8 fuel in gasoline engines" might give some results. How reliable I don't know.

JP8 is used extensively in diesel engines...won't work in gasoline engines ....

http://www.alu.army.mil/alog/issues/MarApr05/reality.html

https://en.wikipedia.org/wiki/JP-8

https://www.physicsforums.com/threads/80-gasoline-20-kerosene-20-more-power.794903/

NO!

You can't use it!

Well, you can use it if you dilute it with 90% pure gasoline.

How does it do in 2-cycle engines? In Cavaliers? Those generally are found on road dead, anyhow...

In Cavaliers?

Use JP-8, gasoline, maple syrup, jackalope urine, strawberry daiquiris...and you will find no discernible difference in the performance of the typical Cavalier.

A Cavalier is a Chevy, not a F.O.R.D.

"...I need an expert and specialized reply on this...", then you should contact the experts in the companies that provide your equipment and have them certify, in writing, the answers to your questions.

But if you want the free advice of strangers on the web, then do some research on the major differences between gasoline and diesel, as both engines and fuel. When you do will find that they are absolutely not interchangeable, and as Lyn and others have stated, the qualified answer to your question is "No".

(Some of our European friends will be quick to remind me that there are major modifications that can be made to force a gasoline engine to run on diesel, but not very well or efficiently; however, I sense that that is not your professional goal. If it is then there's plenty on the web that will assist your efforts.)

Many moons ago Ford made a head for running petrol engines on paraffin.

It was part of a job lot. I wasn’t particularly interested in it so didn’t look what modifications had been made to the original head.

Wasn't that what was known as the Ford "hothead"? It might work in a red ball engine, but how in heck do you keep that fuel tank hot enough in Alaska? Conveyor belt instead of fuel line?

They used the same principle as the old farm tractors did that had the kerosene/distillate carburetors and manifolds.

On the old tractors they had a special manifold that routed extra exhaust heat to the intake side that would then allow for it to vaporize the heavier fuel in route from the carburetor to the combustion chambers so that the spark ignition could work with it.

As mentioned thy needed dismally low 4 - 5:1 compression ratios to work reliably.

The downside was to get any degree of reliable starting they had to start with gasoline then run until the engine and manifold was hot enough then switch over to the other heavy fuel. Then before shutting them down they had to switch back so that the carburetor was primed with gasoline for the next start.

For tractors doing farm work being a bit underpowered and having a two step start and shutdown procedure was not a big deal being once they were running they needed to be used continuously for a few hours or more whereas with a vehicle a long slow starting procedure followed by a specific shutdown made them rather impractical to use for short trips and what not.

Hello sir,

thank you, for your detailed answer, as i needed. Even though, i got my answer, as much as i needed practically (is diesel fuel not gas combustion at all, and different from vehicle diesel fuel typically we use.) But I'v reviewed yours fast and i appreciate your time spending on informing me.

this discussion is relatively enough for me. But since we forced to use this type of fule under circumstances, our employee had to mix JP8 with the regular Diesel fuel in the storage tank to use for regular diesel trucks, would it be any problem storing this mixture and using it in the usual diesel cars and trucks, since it is less viscose and low lubrication and some other specs.

Noting that, in the place being used, there is no problem with official emission regulations, escept the damage it might cause to the diesel truck or power generator that will use it instead of diesel fuel.

Appreciate for your comment as well as other on this new issue.

Best regards,

JP8, Jet A1 and just about all the other jet fuels out there will burn in every diesel engine I have ever put it in. Diesel is slightly heavier and provides more lubrication for the engine and pumps so I am told by mechanics that friction wearing parts don't last as long. Jet fuel also runs a bit hotter in the engine.

Deployed military units tend to use jp8 or jet a1 instead of diesel in all the vehicles on base except gasoline. It makes sense because fuels personnel (like me) don't want to have to deal with more types of fuel than absolutely needed. There are blend ratio tables that will let you mix fuel types, a petrol engine will be more forgiving of a bit too much diesel than the other way around. It doesn't take much gasoline to ruin a bunch of diesel.

Drew K

Just say no!

But I know better!

There is something wrong on the internet...and I must fix it!!!!

Drew K

If my wife does not hear me, am I still wrong?

If the subject ever comes up again, yes!

OK. Gas engines, NO!

Diesel engines, NO problem.

I have heard a long time ago that the 6x6 trucks used in the 2nd world war were multi fuel that could fun on almost any kind of fuel. Can anyone collaborate this?

The common deuce and a half were produced by GM with a 92HP engine, and by Studebaker with a 86HP engine, both used gasoline. During WW2 many enterprising mechanics tried preheaters to raise the temperature of diesel enough to affect its volatility, but the drive-ability was terrible in the relatively low compression gasoline engines.

In a war-time situation, where your life is on the line or that of your men, and fuel is scarce.....you will do ANYTHING or at least TRY ANYTHING to keep moving to stay alive. Yes, they used whatever they could get to fire in an engine....be it edible oils, alcohol, gasoline, black oil, kerosene, diesel, whatever......

But, that is not to say it was good for the engine, but that was not the major concern.

Shipboard, on aircraft carriers, JP-5 is everywhere. Diesel is not even used. Many times aircraft have to be emptied of fuel; that fuel is then considered contaminated and cannot be pumped back into an aircraft to avoid possible cross-contamination. The "used" or contaminated fuel is pumped into "waste jet fuel" tanks, and is used as the only fuel for ALL diesel-powered equipment, such as cranes, diesel electric power "jennies", diesel powered hydraulic pumps, diesel powered aircraft tow tractors, diesel powered air conditioners, diesel powered aircraft starters. And like the aircraft, all this diesel powered support equipment has to be reliable.

Many times aircraft came aboard fueled with JP-8 from some shore station. That fuel was transferred from the aircraft right into the waste jet fuel tank. At times the tank became over 75% JP-8. There was never any problem burning it in all the diesel powered equipment.

The M35 is a multi-fuel deuce and a half. There is a Wiki page on it. One of my sergeants back in the eighties said they burned salad oil just fine too.

https://en.wikipedia.org/wiki/M35_2%C2%BD-ton_cargo_truck