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Double Or Nothing

I'VE done more than 70,000km since I fitted a dual-fuel LPG system to my 2003 Pajero diesel and have no problem with it, but I keep hearing reports of others burning valves and having other problems. It has definitely resulted in a power increase and I now get an extra 200km a tank of diesel. I don't know if I should switch it off or not. What do you think?

YOU'VE done 70,000km without any problem, which is enough for any problem to surface, so I'd leave it. I've heard of some issues with engines blowing up on these systems, but it's because drivers take full advantage of the power boost and drive their vehicles harder, instead of easing off on the throttle and getting full advantage of the fuel-cost savings.

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