Saturday, Jun 08, 2019 at 20:31
I have had similar experience to Michael - I owned a dual-fuel ute and a dual-fuel V8 in a 4 tonne Bedford truck, which were economic when LPG was cheap. I can recall buying LPG for 16c a litre in
Adelaide in 1998.
But then LPG went up astronomically, and petrol prices came down, and the advantage was lost.
Many people got a $3000 subsidy in W.A., from around 2006, when the W.A. Govt and the Federal Govt were intent on supporting LPG-fuelled vehicles, and petrol prices were rocketing.
Carpenter Govt offers $3000 LPG subsidy
I missed out on the subsidy unfortunately, because my vehicle had been converted before the subsidy was initiated, and the Govts would only pay the subsidy on new conversions.
Then the Govts withdrew the subsidy a few years later, and it then became a borderline equation to convert to LPG.
The other factors are -
1. My ute and truck were fitted with carburettors, which makes conversion easier. LPG conversions on fuel-injected vehicles are more costly.
2. LPG Fuel economy is about 2/3rds the level of petrol - but the cheaper LPG made it cost-effective.
3. Engines run much cleaner on LPG, because there is virtually no carbon in LPG. Rings, pistons and cylinder bores hardly show any wear after high mileages, and oil change periods can be doubled.
However, engines run on LPG are harder on valves, and valve
seat recession can be a problem, particularly at high speeds.
99% of todays engines have hardened valve
seat inserts, so the valve
seat problem is no longer a problem, if you change to LPG.
4. The LPG tank is only good for 10 years, after which period it must be inspected and re-certified. It's often cheaper to buy a new tank.
The pricing of LPG in country areas was certainly a major rip-off, it didn't cost a great deal to transport the LPG to country areas, it was just a fuel retailer rort.
Cheers, Ron.
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