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Lpg only or lpg fumigation on a diesel engine? Lpg by itself doesn't have the btu content other fuels have, but it is cheap, so might be economical. A small quantity in a diesel engine is supposed to speed up the burn and help burn some of the diesel fuel that would otherwise go unburned out the tailpipe. There is definitely room for improvement on my old dodge trucks. If it's true, I should see an increase in efficiency and a decrease in hc out the tailpipe. I already have a dramatic power increase and a few subtle improvements like sound reduction and smoke reduction. The smoke reduction points to a more complete burn.
I'm going to search out the mb steam thread. Sounds interesting.
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