propane kit on 99 xj
Junior Member
Joined: Jul 2007
Posts: 78
Likes: 0
From: On the grassy knoll.......
Model: Cherokee
Cool mod, man. 
There is a company out there, and I can't for the life of me remember their name, that sells a dual-fuel conversion for Jeeps. It allows you to use conventional fuels as well as propane. Throw a switch and you're using propane. Throw it again and you can use gasoline. The only problem I see is that you have to add ANOTHER fuel tank to your rig. I thought about doing this mod to my TJ, but TJs have such little room in the back for trail gear, let alone a decent sized propane tank. I think it's cool that you're doing the propane thing, and when I eventually pick up an XJ, I think I will do the dual-fuel conversion.
There is a company out there, and I can't for the life of me remember their name, that sells a dual-fuel conversion for Jeeps. It allows you to use conventional fuels as well as propane. Throw a switch and you're using propane. Throw it again and you can use gasoline. The only problem I see is that you have to add ANOTHER fuel tank to your rig. I thought about doing this mod to my TJ, but TJs have such little room in the back for trail gear, let alone a decent sized propane tank. I think it's cool that you're doing the propane thing, and when I eventually pick up an XJ, I think I will do the dual-fuel conversion.
Thread Starter
Junior Member
Joined: Jun 2010
Posts: 91
Likes: 2
From: pa
Year: 1999
Model: Cherokee
Engine: 4.0 with 2.5 down pipe and 3 inch custom exhaust runs on propane
Thread Starter
Junior Member
Joined: Jun 2010
Posts: 91
Likes: 2
From: pa
Year: 1999
Model: Cherokee
Engine: 4.0 with 2.5 down pipe and 3 inch custom exhaust runs on propane
Cool mod, man. There is a company out there, and I can't for the life of me remember their name, that sells a dual-fuel for Jeeps. It allows you to use conventional fuels as well as propane. Throw a switch and you're using propane. Throw it again and you can use gasoline. The only problem I see is that you have to add ANOTHER fuel tank to your rig. I thought about doing this mod to my TJ, but TJs have such little room in the back for trail gear, let alone a decent sized propane tank. I think it's cool that you're doing the propane thing, and when I eventually pick up an XJ, I think I will do the dual-fuel conversion.
There is a company out there, and I can't for the life of me remember their name, that sells a dual-fuel for Jeeps. It allows you to use conventional fuels as well as propane. Throw a switch and you're using propane. Throw it again and you can use gasoline. The only problem I see is that you have to add ANOTHER fuel tank to your rig. I thought about doing this mod to my TJ, but TJs have such little room in the back for trail gear, let alone a decent sized propane tank. I think it's cool that you're doing the propane thing, and when I eventually pick up an XJ, I think I will do the dual-fuel conversion.
Thread Starter
Junior Member
Joined: Jun 2010
Posts: 91
Likes: 2
From: pa
Year: 1999
Model: Cherokee
Engine: 4.0 with 2.5 down pipe and 3 inch custom exhaust runs on propane
by the way everyone i did a lil calc and i am getting about 11 or 12 mpg city not sure hwy will let you know going to make a trip to oc md at end of aug or sept will let everyone know then.
CF Veteran
Joined: Nov 2009
Posts: 1,671
Likes: 1
From: Northern Vermont
Year: '89
Model: Cherokee
Engine: 242
....I dont know....
As cool as this is... @ 10-12mpgs/26Gal tank = 260-312 miles per tank
I think I'll still stick with a diesel conversion, and get 23-28mpgs/20Gal tank = 460-560 miles per tank.
And besides, you cant really drive loooong distances with this. I dont think highways have propane refilling stations in them.
But for a STRICTLY offroad vehicle, that gets trailer everywhere, this would be the ideal setup.
As cool as this is... @ 10-12mpgs/26Gal tank = 260-312 miles per tank
I think I'll still stick with a diesel conversion, and get 23-28mpgs/20Gal tank = 460-560 miles per tank.
And besides, you cant really drive loooong distances with this. I dont think highways have propane refilling stations in them.
But for a STRICTLY offroad vehicle, that gets trailer everywhere, this would be the ideal setup.
Honorary Moderator
Joined: Mar 2010
Posts: 8,135
Likes: 16
From: Gilbert AZ/Las Cruces NM
Year: 1996
Model: Cherokee
Engine: 4.0 upgraded
That is where I beg to differ.
the fact that propane runs completely clean and it does not produce ANY carbon build up is a plus, it will save a new engine lots of turmoil
the fact that propane runs completely clean and it does not produce ANY carbon build up is a plus, it will save a new engine lots of turmoil
Caracticus Potts The Mod
Joined: Jul 2009
Posts: 5,298
Likes: 9
From: Hainsville, NJ
Model: Grand Cherokee
I work on propane powered vehicles, and the cons out way the pros until about 3 years ago when liquid propane direct injection systems hit the market. Prior system using a mixer and carb were dirty and unreliable. Not to mention what propane temps do to intake and exhaust valves.
CF Veteran
Joined: Nov 2009
Posts: 1,671
Likes: 1
From: Northern Vermont
Year: '89
Model: Cherokee
Engine: 242
But, places to get propane tanks filled are hard to come buy (here atleast), since most places do the "swap a tank" method, where you turn in your old empty tank and grab a new full one, because its easier that way, and they dont need to have/keep a bulk propane tank on the premises.
Will it save you money? Yes, but only because propane costs less than gas, and thats the only plus I see from this, when put on a DD.
I still think a diesels benefits outweigh the propane, when considering them in a DD...but thats just me...
