Running on biodiesel is easy. Making biodiesel is messy, time consuming, involves hazzardous chemicals and is not great for the engine (if not done properly). I have done both for many years.

If you have a reliable source of WVO and have the time and space to filter it and de-water it, then a good conversion is the way to go. A properly set up settling and filtering system takes far less time than biodiesel processing. It takes me less of my time to dewater and filter enough oil to run 3 cars and heat my house than it takes for me to produce enough biodiesel to run one car.

Cutting corners on either de-watering and filtering of WVO or poor processing of biodiesel can ruin an engine.

2 tank systems are much prefered over 1 tank and handle a wider range of WVO viscosities and ambient temperatures.

Right now, I am running a two tank system but use commercially produced biodiesel for startup and shut down.

__________________
Ron Schroeder
'85 300 Turbo Diesel 2 tank WVO
'83 300 Turbo Diesel 2 tank WVO
Some former WVO vehicles since ~1980:
'83 Mercedes 240D
'80 Audi 4000D
'83 ISUZU Pup
'70 SAAB 99 with Kubota diesel
'76 Honda Civic with Kubota diesel
'86 Golf
Several diesel generators
All with 2 tank WVO conversion
LI NY