When Kent Pinson trains fellow locomotive engineers for Union Pacific’s (UP) Fuel Masters Unlimited, the freight railroad’s renowned fuel conservation program, he often shows them a poster published by his employer. It shows an Olympic–sized swimming pool with the message: UP consumes enough diesel fuel to fill this pool every four and a half hours. “It puts into perspective how much fuel it takes to haul the goods Americans need every day,” says Pinson, a UP veteran of 37 years. “The first year we put this program into effect, we saved about 2 million gallons of fuel in the Portland, Oregon area. That’s a huge number, one I’m proud of.” Pinson pauses for a moment. “Maybe it’s time for a new poster,” he says.