I have been using WVO since 2006.
What I did was:
Screen out all the big chunks.
Wash the vegetable with water.
Let the water and oil seperate out. This has to be done when its warm.
Then tie 2 or 3 coffie filters to a 3 inch pvc pipe and slowly pour oil in and allow it to gravity feed through the filters. (use 2 or 3 because the weight of the oil will rip through a single filter)
Then water test by heating a sample.
Once you have your oil cut it into diesel fuel at the rate of 1% to 25% depending on your type of engine and weather conditions. Your engine will likely be most happy with a 10% to 15% mix.
That is how you run WVO with out modifing the engine or ruining the injector pump.
Once I got the process down I had no problem making at least $30 per hour worth of fuel per hour spent processing it.
Just don't ruin the engine by trying to run straight oil.
You can get too much of a good thing. Less is more here.
If you tap an unilimited suppy of oil make bio diesel.
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