Trailblazing bus fleets on both coasts lean on deere engines

摘要

Two school districts separated by some 2,500 mites have a coupLe things in common:they both operate fleets consisting entirely of advanced-technology buses and they both rely heavily on natural gas engines built by John Deere.The Napa Valley Unified School District (NVUSD) has accumulated more than 1.4 million miles in the heart of Northern California wine country with its all-natural gas fleet of 23 Blue Bird and Thomas Built school buses,each powered by a Deere 8.1-liter,250-hp engine.