Vehicle Maintenance to Conserve Fuel

A comprehensive vehicle maintenance strategy can help fleet managers and drivers conserve fuel. Your fleet may already rely on these practices to ensure vehicle efficiency.

Proper Tire Inflation

Photo of tire pressure being measured.

Properly inflated tires last longer, increase fuel economy, and are safer. Every decrease in pressure by 1 pound per square inch for four tires can decrease fuel economy by 0.2%. By keeping your tires properly inflated, you can improve your gas mileage by 0.6% on average, up to 3%. Some fleets use nitrogen inflation, tire pressure monitoring systems (standard equipment in LDVs newer than 2007), and other technologies to maintain optimum tire pressure. To find the proper tire pressure for your vehicle, you can refer to the tire specifications provided by the manufacturer.

Recommended Motor Oil

Using the manufacturer's recommended grade of motor oil in an engine can improve fuel economy by 1%-2%. Check your owner's manual for the manufacturer's recommended grade of motor oil. Also, you may select motor oil that contains friction-reducing additives that improve fuel economy; look for oil labeled "Energy Conserving" on the American Petroleum Institute service symbol.

Engine Tune-Ups

Regular engine tune-ups ensure that your vehicle is running efficiently and can save you time and money in the long run. Tuning a neglected vehicle or fixing one that failed an emissions test can increase fuel economy by an average of 4%, based on the repair type and quality. Repairing a serious problem—such as a faulty oxygen sensor—can increase fuel economy by 40%. See your owner’s manual for manufacturer recommendations on when to get tune-ups.