
DT466 Engine Specs, Problems, & Overview - Skoolie Engine
DT466 vs 5.9L Cummins Life Expectancy. The DT466/DT466E diesel engines were given a life expectancy of 350,000 miles, but with proper maintenance, engine life could extend up to 550,000 miles. Some school bus mechanics claim to have run their DT466-equipped buses for 700,000 miles before requiring an engine rebuild.