The fact that the IC Bus CE Series school bus doesn't use liquid urea in its emissions system was likely a factor in it achieving up to 4.5 percent better fluid economy than its competitors.

IC Bus, a subsidiary of Navistar ... close and personal opportunity for bus industry stakeholders to experience the electric IC Bus ® CE Series concept school bus developed with Navistar's ...

It takes about 2 1/2 days for a pile of steel and parts to turn into a classic yellow school bus at the IC Bus plant in Tulsa ... from windows and painting to tires and interiors.