Tips For Fleet Fuel Efficiency

August 2, 2007

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PHH FirstFleet recently announced the results of a fuel study of U.S. truck fleets in the grocery, manufacturing, fuel and retail markets, Industryweek reports.

By slightly over-spec’ing engines in order to run more consistently in the “sweet spot,” choosing a gear ratio low enough to suit a fleet’s application and location, and enabling the correct fuel-efficient, engine-specific parameters, fuel economy will improve by around five percent.

PHH FirstFleet offered the following list for achieving better fuel economy:

Increase engine torque ratings - Increase torque ratings to decrease time spent in the high output torque ranges.
Decrease gear ratio - Choose a lower gear ratio to improve fuel economy.
Stop Speeding - Above 70 MPH, a tractor’s engine works to overcome aerodynamic drag.
Idling - Idling uses .5 to 1 gallon of fuel per hour.
Progressive Shifting – Drivers shifting quickly in lower gears prevents over-revving, which decreases fuel consumption.
Spec APUs - Auxiliary Power Units allow drivers to run peripheral applications without running the engine.
Aerodynamics – New innovations in trailer aerodynamics decrease wind resistance.
Lower Weight - New low weight materials allow for more potential fuel economy gains.
Low Profile Radial or Wide Based Tires - Research indicates that fuel economy can improve as much as two percent to five percent by using low profile and/or wide based tires and wheels.

Wal-Mart used some of these same techniques to increase the fuel efficiency of its fleet by about 15 percent.

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