The FedEx driver at my first bulk stop showed up while I was delivering in a new "hybrid" diesel-electric truck. I dont see hybrids being a good choice for UPS, but what about running biodiesel in our fleet? We could easily run a "B20" mixture (20% biodiesel, 80% petroleum) in our fleet year around, with no warranty or maintainence issues at all. It would be neat to have "powered by biodiesel" stickers on both sides of the truck as advertising for the green crowd, in addition to having real enviornmental benefits and reducing our dependence on foreign oil. I'm not talking about used cooking oil here; I'm talking about genuine diesel fuel made from renewables. I personally have been running pure biodiesel in my car for two years and 25,000 miles with no issues at all ( although in the winter I blend down to 50% when it gets cold.) If UPS is willing to invest in Nascar and horse racing sponsorship...what about making a nod to the "green" crown by using biodiesel?