There is evidently a lot for me to learn before I start running my car for free on the waste vegetable oil from restaurant fryers. Sure, it sounds easy: collect free junk oil, filter it, put it in your car. But there are a lot of nuances to understand before I can barrel across the continent on nothing but refuse and a jaunty tune.
I mean, first of all... where the hell do I get a diesel vehicle? Which one is a good one? How much do they cost? What do I need to know to maintain one? Are they even available in automatic models, or am I finally going to have to break down and learn to drive a manual?
Next off, I need to get it converted. I mean I don't HAVE to, but it's prety dicey pouring cooking fat into your normal diesel tank. It gets cold, and gums up the lines. Then you're boned. With a 2-tank conversion, you heat up the oil before chucking it into the engine, and flush it out with regular diesel afterwards. I know of a place in small-town Alberta that does this, and they are certified by a major distributor of conversion kits.
So much yet to learn...