Anyone running Propane, or thinking about it?

I've had both propane and CNG vehicles and don't recommend either unless it's for a local fleet. I agree with the benefits mentioned, but to me, the negatives outweigh them. Like what was mentioned, it can be hard to find in some areas, the kits and replacement parts are not cheap and can be tempermental, and unless you build a motor to make best use of it, it's going to have less power. To me, it's just not cost effective to retrofit one. If you just HAVE to have one, get a dual fuel system so you can at least run on gasoline if you run out of propane/CNG.