Can a car COMOLETELY run on veggie oil?

On myth busters, they ran a car off diesel. Ten they emptied it and ran it off veggie oil. I live in L.A and have a diesel truck. Can I put 100% VEGETABLE OIL into the gas tank, and drive away? I understand it will get gel like because it's viscous but if it does not can I? Can I run the truck on absolute... show more On myth busters, they ran a car off diesel. Ten they emptied it and ran it off veggie oil. I live in L.A and have a diesel truck. Can I put 100% VEGETABLE OIL into the gas tank, and drive away? I understand it will get gel like because it's viscous but if it does not can I? Can I run the truck on absolute VEGGiE oil without a trace of gasoline to start it up with? And is mixing beer with veggie oil a good biodiesel? If so, could I put the biodiesel into the tank without any modifications to the truck? Oil+Beer+truck=happy man??
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