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.](images/tire_gauge.jpg)
Properly inflated tires last longer and increase fuel economy. Every decrease in pressure by 1 pound per square inch for four tires can decrease fuel economy by 0.3%. Some fleets use nitrogen inflation, tire pressure monitoring systems, and other technologies to maintain optimum tire pressure.
Recommended Motor Oil
Fleets can improve fuel economy by 1%-2% using the manufacturer's recommended grade of motor oil. For example, using 10W-30 motor oil in an engine designed to use 5W-30 can decrease fuel economy by 1%-2%. Similarly, using 5W-30 in an engine designed for 5W-20 can decrease fuel economy by 1%-1.5%. Check your owner's manual for the manufacturer's recommend grade of motor oil.
Motor oil labeled "Energy Conserving" in the performance information contains friction-reducing additives that improve fuel economy.
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 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.