Doc, There's nothing special about a diesel running veggie; it'll run regular diesel just fine, so long trips aren't a problem. The veggie is the trickier part. The veggie has a higher flash point than the diesel. There's two methods I know of: 1. You get a 'distiller' type apparatus that makes lower flash point diesel. You filter the veggiet, add lye to get the right ph, and add some racing gas type additive. This can be burned straight up and costs about 70 cents a gallon. 2. You can put a kit in your truck. It has a second tank with a 'warmer' for the veggie, and a switch to switch from diesel to veggie. You start up using diesel. After 5 minutes or so, the veggie warms up enough where it will burn, so you flip the switch and run just veggie. Then a couple of minutes before you stop, you flip back to diesel to purge the system. I like method one since you don't need to modify the truck or remember to do anything. - Jim Jim Altemose, Long Island, NY '63 Polara 500 (Max Wedge), '65 Belvedere I (Street Wedge), '71 Bronco