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• Not getting a charge out of batteries?

  Juice performance and service life with high-powered batteries and high-tech capacitors.

• Smooth rides: The new generation of air suspensions

  Manufacturers improve ruggedness and durability while reducing weight.

• Payload finally pays back

  New emissions standards factor vehicle use into the equation.

• Running a well-oiled machine

  How emissions standards and sophisticated computer controls affect formulations and service schedules.

• Reduce idle time

  Three reasons to break the idling habit, and technologies that can help you do it.

• Rethinking retreads

  A tire retread program can revive your fleet budget, if done right.

• The evolution of transmissions

  A new generation of automated transmissions offers cost-effective choices.

• Safely extending oil change intervals

  You don't have to be a slave to manufacturer-recommended schedules.

• Don't be fooled by marketing claims

  Whatever engine you choose, the investment's good until at least 2013.

• FEDs target gross weight vehicles 8,500 pounds and heavier