10 Proven Ways to Improve Your RV Fuel Efficiency

Meta Description: Actionable techniques that can boost your MPG significantly starting on your very next trip. 10 Proven Ways to Improve Your RV Fuel Efficiency.

Fuel is often the single largest expense of any RV adventure. While you can't change the aerodynamic profile of your rig completely, you can change your driving habits and setup. Small adjustments can yield a 10% to 20% improvement in MPG.

1. Reduce Your Driving Speed

The golden rule of RV fuel economy is to slow down. Aerodynamic drag increases exponentially with speed. Dropping from 70 MPH to 60 MPH can improve your fuel economy by over 15%.

2. Check Tire Pressure Daily

Underinflated tires create rolling resistance, forcing your engine to work harder. Invest in a Quality Tire Pressure Monitoring System (TPMS) and verify cold tire pressures every morning.

3. Lighten the Load

Weight directly correlates to fuel consumption. Consider traveling with empty gray and black tanks, and carry only enough fresh water (perhaps 10 gallons) for transit needs until you reach a campground where you can fill up.

4. Accelerate and Brake Smoothly

Jackrabbit starts destroy fuel efficiency. Take a long runway approach to reaching your cruising speed, and anticipate stops far in advance to let the engine brake naturally.

5. Eliminate Idling

If you pull into a rest stop for more than five minutes, turn off the engine. Modern engines do not need long warm-up times, and prolonged idling only burns unnecessary fuel.

6. Keep Up with Engine Maintenance

A restricted air filter or old spark plugs can slash your MPG. Follow your chassis manufacturer's maintenance schedule religiously.

7. Manage Your A/C Usage

Running the dash A/C puts a heavy load on the engine. On cooler mornings, rely on vent fans. However, at highway speeds, keeping windows closed and using A/C is usually more aerodynamic than driving with windows down.

8. Use Cruise Control (On Flat Terrain)

Cruise control prevents micro-accelerations that waste fuel. However, explicitly turn it off in hilly or mountainous terrain, as it will aggressively downshift to maintain speed up inclines.

9. Draft Carefully (But Safely)

While you should never tailgate, driving at a safe, legal following distance behind a large semi-truck can slightly reduce wind resistance on your front cap.

10. Plan Efficient Routes

Stop-and-go city traffic ruins fuel economy. Use RV GPS routing to stick to steady interstates or smooth state highways, avoiding downtown areas and steep mountain passes when possible.