Info about using waste vegetable oil in diesel engine

Hi there,
I am living in South Africa where I have just bought a Toyota Land Cruiser HJ45 1980, 6 cylinders in-line, 3.6l. I would like to make it running with w.v.o. and I have already bought my first 40 liters of oils from the chips restaurant at the corner of my street. Is there anyone that can inform me about the filtration and the % that I can put straight in my engine without any modification? Is there any damage for the engine by using w.v.o.?
Best regards from the tip of Africa!
Antoine Marchal


South Africa

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