Ben I see on your site that you have a veggie oil vehicle. I have been considering getting (making) one my self, however, I've been hearing a lot about how hard it is to get waste oil these days. Apparently people do see it as trash any more. Do you have any tips for getting a regular supply of oil?
Also what kinda vehicle do you have? and do you have any novel ways to preheat the engine to decrease the time that you have to run on diesel?
I've converted many cars and trucks to run on WVO and run my dodge ram 2500 and vd tdi wagon.
Establishing a relationship with a supplier is usually best. There is indeed a lot less oil now - especially due to biodiesel use.
About 4 years ago I put a coolant to veggie exchanger in the VW which works great - they didn't have these when I started veggie driving more than 10 years ago, so we didn't have the option.
Don't push it in the cold! A lot of people have issues because of that.