That's what I heard last year. And the year before that, and the year before that. Since we've been driving the Jetta I've heard at least a half dozen reasons from friends and family why it won't work, and why we're foolish for doing it, yet the car keeps running fine, and we pay an average of about $2 for every 600 miles we drive it. Our savings have long since paid for the conversion kit and have saved us an additional $2200, and that's just using the Jetta as a second car.
And I wasn't being pissy. I mean it when I say I'm fine with you continuing to buy gas. There might be a few thousand of us in the entire county that regularly scavenge veggie oil. As long as 99% of the public think like you then the used veggie oil will stay free and plentiful.