[muns53]

Awesome tractor set-up, Thomas!

Regarding the ROI question, I figured mine at 2 years based on how much money I've spent overall on my system, the install, my veg-filtering crap, etc. It will pay me back faster if I drive more miles/year than anticipated and if diesel stays at $3 or goes higher. Also, because I have oil and a real comfortable Excursion, we can now drive on family trips for next to nothing in incremental cost, whereas before we'd be paying $2K+ to fly places.

There are many reasons people start greasing. But it's definitely a hobby NOT to take lightly. And if done wrong (as in improper filtering or using a lot of the crappy veg kits out there), it could do a lot of harm to a fine diesel motor. If done right (as in good de-watering/filtering and a Vegistroke or Frybrid system), it works out great.