Originally Posted by
Hall
I have run a vehicle on straight wvo.It was a 4wd truck with a 2h motor. I was using both oil and then fat. Veg oil is good but I found a couple of problems with it. One was it could have been used to stick the tiles to the space shuttle. Spill it on any thing you wish it to come of, yeah right. Two it will form a algae in your tank if the conditions are right. Warm and dark. So if you run a tank heater as I did you grew algae. A reddish brown growth. Apart from those minor problems it was ok. Now fat. Or in my case a soft lard like fat,almost melted at room temp. You also have more hassles before you get to the tank. To filter it you need to melt it, to put in your vehicle tank you need to melt it. After pumping it through a filter you need to clean the pump, filter and hoses. The vehicle tank needs to be heated and you need to run a fat only heated fuel line up to the motor and close as possible to the injector pump a tank selector valve. I was lucky that the 2H does not return any fuel to the tank,recirculates at the pump. The only good thing with fat is it does not grow algae like the veg oil. But it does expand a lot more when it is heated so you need to alow for that when filling a tank.And straight veg or fat rely on a fairly high iodine level ( what gives bio fuel it`s bang) Veg oils seems to be of a fairly consistent quality for its iodine level, but fat or at least the stuff I was using was a bit hit and miss. One tank it would run ok and next it would run like a dog. Both veg oil and fat must be purged from the injector pump before you stop for a length of time that allows the oil or fat to solidify. You can tow start a veg oil filled motor, not real good for it though. You are in more trouble with fat. I`m considering making bio fuel because of the hassles associated with straight veg oil or fat. I would not use striaght veg or fat of road because of the chance of the motor stopping for a while. But as it has been noted making bio is a hassle as well, but only in the making stage, not in the usage stage.
Do remember some classic moments when running on bio and dogs going ape over the smell and people at lite`s madly winding there windows up when I pulled up next to them. The oil smelt not to bad at all. That fat was a bit like off meat, not so good, so can understand the reaction I got from other motorists.
Cheers Hall
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