May 28, 2007


Mack introduces Idle Free Hybrid System to save fuel and reduce emissions

Lehigh Valley, Pennsylvania – Mack Trucks Inc. has announced the availability of its new Idle Free Hybrid System, which uses battery power in place of engine idling to provide electricity and heat for drivers. Mack is the first truck manufacturer to offer the system.

The U.S. Environmental Protection Agency (EPA) estimates that heavy-duty truck idling in the U.S. consumes 960 million gallons of diesel fuel annually, resulting in annual emissions of 11 million tons of CO2, 180,000 tons of NOx, and 5,000 tons of particulates. Drivers idle their trucks during non-driving hours to stay warm or cool, and to use electrical devices in their sleeper cabs.

The new system uses a bank of high-efficiency absorbed glass mat batteries to provide electrical power for heating, air conditioning and amenities such as televisions or microwaves. The bank of five batteries is stored under the sleeper’s bunk and can be recharged by the truck’s alternator when the engine is running, through a shore power connection when the vehicle is stopped, or through an available connection to the reefer unit on refrigerated trailers.

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