Running SVO
SMalafy, There have been many studies done on running SVO in a modern direct injection diesel engine. The don't hold up too well on long term testing. Things just start to foul up. Short term you can't hardly tell the difference between SVO and diesel #2.
The older indirect injected engines with mechanical fuel pumps and heated oils did just fine.
I would be real careful about running straight veggie oil in our Cummins (24 valve and later) for any length of time. There's no doubt it will burn it... but for how long.
Mixing a small percentage of SVO and diesel #2... now thats a different story. Depending on the blend ratio you might go a long time before anything fouled up (injector fouling, cylinder wall glazing, etc. ).
If you have a new "High pressure Common Rail" engine there's going to be more issues. I don't know if it will run SVO or not... I think not.
If you're going to play around with SVO or WVO (I do) do your homework and know what your getting into. I would hate to see somebody screw a new rig up just for playing around with french fry oil. It ain't worth it.
But, if you do know whats happening it sure is an easy way to beat the latest fuel price increases. If you're paying $2. 00 a gallon for #2 and can get used oil for free and only add 10%... brings the price down to $1. 80. Not too shabby and a 10% blend shouldn't hurt anything. . if it's clean oil.
Anyway, look around the web. . there's lots of info out there.
Mike