- Maintain proper tire inflation for both the trailer and tractor.
- Replace fuel filters at proper intervals.
- Keep all axles properly aligned to minimize rolling resistance.
- Repair body damage, dings, dents and loose fairing that may create additional drag.
- Use good synthetic lubricants in the transmission and axles.
Behind the wheel
- Slow down. Fuel economy improves when a 60 MPH cruise speed is maintained.
- Use a fuel economy display device that permits monitoring so drivers may correct fuel economy performance by the minute.
- Use of cruise control will typically enhance fuel economy performance.
- Maintain optimal RPMs for the specific engine. Each engine has a unique torque curve, typically between 1,200 and 1,600 RPMs.
- Minimize idling. Five minutes of warm-up is generally adequate and cool-down comes when a truck pulls in to park. Depending on its speed, idling uses between 0.5 and 1.2 gallons per hour.
SOURCE: KENWORTH TRUCK CO.