Here's the tank in the trunk. This tank is slightly different
than the Greasecar 'standard' tank in that it has the
coolant ports on the right side. The coolant lines come out
of the tank and down through the floor to the right of the tank.
The coolant lines bring warm engine coolant to the tank to heat the
cooking oil in the tank. Unless you heat the oil, it's too thick
to go through the injector pump and injector nozzles. So the
engine is started with regular diesel and allowed to heat up (which
takes 2 or 3 miles), and then I switch from diesel to the heated
vegetable oil (aka VO)