Police began looking for the vehicle after two men attempted to fill the diesel tank up with unleaded. The Colorado State Patrol says the men, who appeared to be of Middle Eastern descent, stopped at a gas station in Byers on Thursday. The town is just off I-70, about 30 miles from Denver.
After the clerk alerted the men to their mistake, they fueled the
tractor-trailer with diesel fuel, paid with cash, and headed East
on US 36.
The truck had the words "Real Transport'' painted on the sides.
Authorities want to question the men about the truck's registration.
If you've seen the truck you can contact the Colorado State Patrol.