Love it!
Jerry, I use it a lot, it works great. I'm also a dealer for them, but only signed up with them a few weeks ago, after having and using the system for over a year !
My favorite use for it is while pulling my 30 foot long travel trailer. It keeps the smoke down, and keeps my fuel mileage way up. Without the propane while towing, I'd see 12-13 mpg. With the propane, I get 17-18 unless I'm hammering on it. (While towing it, I drag-raced a stock Cummins dually with no trailer, and beat him,

, but I also had the DD3 injectors and TST PM3 box all going at the same time too)
I use a BBQ tank, and it's adequate. It only lasts about 500 miles, though. But I've got it turned up a little more than usual.
It does seem to help spool up, you can set it to come on at 2-3 psi of boost.
If you have a six speed high output truck, propane is a no-no, it blows the head gaskets.
Tanks are available that you can mount under the bed, right behind the transfer case. Plenty of room for a 30 gallon tank right there.
