I would love to be using LP fumigation on our Diesel tractors and combines if it were not for the hassle of filling the propane. I can't see but what it would not be a better more efficient burn.

I have no experience with the systems and have only talked to a few that have run them but it would seem to me the older engines that did not burn as efficient as the newer engines (ie smoked more) would tend to gain more benefit than the latest engines with higher injection pressures and electronic ignitions that are already a lot more efficient. Not saying it would not be good on the newer engines, but maybe more for added power more than increasing efficiency. I'm surprised EPA isn't demanding LP fumigation or something for better emmissions.

John