Quote:
Originally Posted by TimM
I agree that the economics of installing gas has changed. However, and from just from a technical point of view, I can tell you that the WG with the 4.7LTR V8 works extremely well on gas injection. I did 250K kilometres with gas (dual fuel) on my old 2004 Grand. No lift or major mods and I averaged 16-17 L/100Kms during that time (about 14.5 L/100KMS on petrol). I noticed no difference in power or torque when driving and that included towing a 2300KG van.
Out of interest I had an 86 Litre 'donut' tank in the wheel well and with the spare mounted vertically on left side - see pic. Some side benefits to gas include extended range and (claimed) extended engine life.
So you might want to do the maths yourself. I think you would need to be confident of getting a good few years out of the WG to make it a financial proposition.
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I agree mate - mine has been great on LPG and has not missed a beat! I think the economy has probably got so bad on mine now due to the system being 9 years old and my WJ having now done 286,000kms.
My worst gripe has been the pathetic range of my 55L (usable) donut tank, particularly when towing I.e. roughly 200-220km towing a ~1200kg camper trailer on a flat highway. If mine had the 72L tank like yours I would probably be a lot happier. It did used to get about 14L/100 on LPG before the lift, tyres and when the odometer was only showing 210,000kms. Plus the LPG system was only 3-4 years old then too.
How was your fuel economy on LPG towing a 2,300kg van?