N952JL said:
What if you were using bio-desiel or maybe peanut oil?
My unit is set up for gaseous fuels only, so I'd have to convert it to liquid fuels, and that would be prohibitively expensive. Most of them are built for Natural Gas cogeneration use in buildings, as mine was. I was able to obtain it at low cost because of this, so that's what I used.
If Capstone Turbine wants to send me a liquid fuel unit, I'll be happy to convert it. Diesel fuel will run in it quite fine, though it won't be quite as clean as the propane.
-Phil