Originally Posted by 
astonm
				
			 
			I bought an '01 D2 V8 5 years ago with the specific intention of converting it to gas ASAP .... this proved to be very difficult and over the months which stretched into years, could not get anyone interested in doing it.
 
I did a lot of research on this, and did come across the occasional instance of Disco 2 being converted..... But everytime I thought I had found a solution, the installer would back out at the last minute, quoting issues with OBD2 diagnostics and engine management.
 
I also looked at importing a system from RPIv8 in the UK, but landed cost and compliance issues made me reluctant.
In the last 12 - 18 months however, things have changed quite a bit and Vapour Inject / SGI systems are a lot more common.
 
Too much time passed, and with a vehicle change looming I decided not to go ahead - sold the car in may last year
 
However I did come across a young chap in Jandakot area, who was willing and able -He fitted a prins SGI system to my latest vehicle (Citroen V6) and subsequently fitted the same type of system to a mates 2003 D2 V8 (update model)
 
This system worked fantasticly on the D2 - No loss of power, no backfiring etc,
However, his D2 had an inherant engine problem, which became really apparant after running on gas for a few hours or until really heat soaked - Nasty engine knock
 
A top end lubricator was fitted, investigation of rockers / lifters etc, even tried diferent oils (all full synthetics), doses of "Slick 50", Moreys ... etc etc
 
After various diagnosis, information gathering etc, we came to the conclusion that the probable cause was the start of the slipping liner scenario.
 
The vehicle consequently had the gas removed and was sold cheaply to a wholesaler
 
This particular vehicle always had what sounded like a noisey lifter when cold, and while it never did overheat, I think the thermo fans ran a hell of a lot more frequently than they should have. The motor continued to run ok on petrol.
 
The point of the story is :
It's not 100% guaranteed your going to get a reliable vehicle - If you have any doubts about your engine dont do it !
One of the possibilities we explored with this particular vehicle was removing the engine and getting stepped liners fitted ..... this seemed to be a $3k - $6K fix depending on how much you are prepared to do yourself.
The gas system worked great