I needed a vehicle that could carry a decent load, 3 people and not cost too much. After some research I worked out it was worth forking out for a half decent van (don't laugh, it's a ford transit) and run it on veg oil! It will pay for itself in no time...
I ran it with a varied mix of cooking oil and diesel for 4k miles over the summer with great performance.
Last week I converted it to run on 100% veg oil. It now has a second 22L tank fitted that contains standard diesel. It starts on diesel and the system is cleared of veg oil before parking up with the diesel. Once warm, a heat exchanger warms the fuel using the engine coolant. A couple fuel valves and switches control the system.
Click for Photos:
Heat exchanger and switch over valve
Engine Bay
Diesel Tank
I hope this might give some the courage to do this on any other cars they own or future vehicles
