10 Ways to Improve Your Fuel Efficiency
Improving your vehicle's fuel efficiency can save you hundreds of dollars each year. Here are ten proven strategies to help you get the most out of every gallon or liter:
1. Maintain Proper Tire Pressure
Underinflated tires can reduce fuel efficiency by up to 3%. Check your tire pressure monthly and inflate to the manufacturer's recommended level (found in your owner's manual or on the driver's side door jamb).
2. Reduce Excess Weight
For every 100 pounds (45 kg) of extra weight in your vehicle, fuel efficiency decreases by about 1%. Remove unnecessary items from your trunk or cargo area.
3. Use Cruise Control on Highways
Maintaining a constant speed improves fuel economy. Cruise control can help you avoid unnecessary acceleration and deceleration on long, flat roads.
4. Avoid Excessive Idling
Idling gets 0 miles per gallon. If you'll be stopped for more than 30 seconds (except in traffic), turn off your engine to save fuel.
5. Drive at Moderate Speeds
Fuel efficiency typically decreases rapidly at speeds above 50 mph (80 km/h). Each 5 mph (8 km/h) over 50 is like paying an additional $0.18 per gallon ($0.05 per liter) for gas.
6. Accelerate and Brake Smoothly
Aggressive driving (rapid acceleration and hard braking) can lower your gas mileage by 15-30% at highway speeds and 10-40% in stop-and-go traffic.
7. Use the Right Gear
For manual transmissions, shift up as soon as possible without straining the engine. For automatics, use overdrive gears and cruise control when appropriate.
8. Keep Your Engine Properly Tuned
Fixing a car that is noticeably out of tune or has failed an emissions test can improve gas mileage by an average of 4%.
9. Use the Recommended Grade of Motor Oil
Using the manufacturer's recommended grade of motor oil can improve gas mileage by 1-2%. Look for motor oil labeled "Energy Conserving" to be sure it contains friction-reducing additives.
10. Plan Your Trips Efficiently
Combine errands into one trip to avoid multiple cold starts. Several short trips taken from a cold start can use twice as much fuel as one longer trip covering the same distance.
Pro Tip:
Track your fuel efficiency over time using our calculator to see which strategies work best for your driving habits and vehicle.