LBZ Duramax MPG Ratings and Real-World Fuel Mileage Guide
The LBZ Duramax engine powers heavy-duty trucks with strong towing capability while delivering respectable duramax mpg. Real-world duramax fuel mileage commonly reaches 15-18 mpg highway and 12-15 mpg combined, depending on load, modifications, and driving habits. Understanding these figures helps owners maximize efficiency on long hauls and daily use.