The fuel mileage of a freightliner Columbia semi with 500 hp Detroit 342 rear axle ratio on low profile 22.5 tires Tall aerodynamic sleeper configuration can vary depending on several factors, including the specific model and year of the truck, the weight of the load being carried, and the driving conditions. However, as a general guide, you can expect the fuel mileage of such a truck to be in the range of 6-8 miles per gallon (mpg). Some more fuel-efficient models may achieve up to 9 mpg while older or less aerodynamic trucks may get as low as 5 mpg.
It's worth noting that there are several things you can do to improve the fuel mileage of your semi truck, such as reducing idling time, optimizing tire pressure, maintaining proper engine maintenance, and choosing the most fuel-efficient routes. By following these tips, you can maximize the fuel efficiency of your semi truck and save on fuel costs.
