Anyone know where to donate used cooking oil for people who want to use it to run their cars?

I've heard that some people have converted their diesel engines to take cooking oil. I sometimes have cooking oil from frying that I'd be willing to donate to them. Does anyone know where I might be able to drop it off for people who want to use it as gas?Anyone know where to donate used cooking oil for people who want to use it to run their cars?
Go to yahoo , wastewatts forums also biodiesel forum you will find many takers for WVO.Anyone know where to donate used cooking oil for people who want to use it to run their cars?
If you contact your local recycler, they'll come pick it up as part of their regular trade and then you don't waste gas delivering it.