Quick update on the veg journey.
I've now got 65,000 miles running Jimmy on 100% WVO with a two tank system. This Spring I started a trial test of starting and stopping on 100% WVO instead of diesel. I preheat the engine with the block heater for 2 hours in the mornings and that's it for the day. At the shop it sits 6-8 hrs and fires right up like it's diesel. I'll run this test until September, then start and stop on diesel again. Happy times.

