Sylvain B wrote:
>
> It was running on used frying oil/grease from restaurants. They said that
> the only modification needed was to pre-heat the grease/oil before sending
> it to the injectors. No other pre-treatement.

        You need to start and stop the engine on petro or biodiesel
as well. So you need two tanks and a way of switching from diesel
to your veggy oil. Not sure if they completed the loop or not,
one of the cars in what appears to be their convey started gushing
oil from the main seal...

dave