Forbes magazine said:How a Beverly Hills doctor powered his SUV using his patients' spare tires.
Liposuctioning unwanted blubber out of pampered Los Angelenos may not seem like a dream job, but it has its perks. Free fuel is one of them.
For a time, Beverly Hills doctor Craig Alan Bittner turned the fat he removed from patients into biodiesel that fueled his Ford SUV and his girlfriend's Lincoln Navigator.
(Though it does seem odd that a Lincoln Navigator, of which no diesel version was sold in the US, would be able to do anything useful on biodiesel. The "Ford SUV" could have been a diesel Excursion.)