Truckster (Vic) replied:

Ive heard of it lots before, one of the blokes building a comp GQ on the PAtrol list was going to run it, but decided to go V8 Petrol instead.

The thing is Ive never heard of anyone using it around here.. Theres sites on the subject, www.google.com.au is your friend on that one.

Would I do it to a GU 3.0? Probably not, they are $17k to rebuild if something goes bush on them..

Also what do you do in the middle of nowhere, when theres no LPG around? Once its set for the mixture, its set, thats why Col went against it in the end.

Kev - (Cairns,QLD) replied:

The Yanks are into it and think they call it propane injection, personaly i wouldn't mess with my engine as i want to keep it as reliable as possable.

relaxed (Fraser Coast-QLD) replied:

I don't think I'll be fiiting one either. For one where would you fit in a wagon without scarificing space and two your quite right truckster, if something went wrong in the bush, you'd be up the creek without a paddle. My question was just to see how popular this concept was in the diesel 4wd community barring of course the comp boys and girls. Because I've never heard of it before.
Learn something new every day.
Relaxed

tour boy replied:

Check out difflock.com/lpg/ I think that this will help.

Savvas replied:

There's quite a few buses in Sydney running compressed natural gas (CNG). I always wondered whether they were converted diesel engines or large petrol type engines.

Can gas ignite under the same principles as diesel? That is, high compression leading to heat generation and ignition. Or are other modifications required to generate the ignition?

Grant replied:

Giday, We use modifyed diesels where I work to provide power. The problems I see with them is they lack grunt when pushed, we have 19 Vee16 gas sets and 4 diesels, the diesels produce around 1400 kilowatts
and the same size converted gas engines 900 kilowatts. They have detonation problems also. If the engine was made as a gas engine I would be happy but converted engines I believe could be suspect, it would be up to who modified the engine and changed the computor program. Cheers PS. the gas engines are cheap to run.

nissan4x4 replied:

A local vic company that deals with research and developement bought back the rights to the technology after initially developing it for ELGAS in QLD (someone in QLD, I'll confirm that tomorrow and supply a web site for them). It was actually the gas injection system that they developed for diesels and was used on quite a few long haul prime movers done the east coast. The theory was to run a 15-20% gas to 85-80% diesel mix. Power output was near equal and sometimes greater than deisel alone and there was the issue. The greater the gas mix, the more power, the hotter the engine, the shorter the life span. The QLD connection decided to get out due to long haul operators knocking on their door requesting some sort of compensation for blown engines. It was a little hard to prove the operator was running above reconmended mix ratios.
I'll post a link tomorrow for this research/dev company web site, there 're in an office below my work.

Cheers.

tex1972 replied:

while we are on the subject of alternate fuels the yanks are pretty big on a diesel and alchol mixture as well

djm67 replied:

Brisbane City Council runs some of their buses on Natural Gas (LPG) as well. They ordered them especially to do so, perhaps the factory has set them up accordingly?