David Mckenna

How to speak DPF

There’s no need to panic when a DPF light signals routine regeneration — at least in most cases.

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LogBook

Court rejects EPA’s Navistar exemption, expanded Overdrive coming in August, EOBRs among hot topics for agency, OOIDA challenging Minn. out of service criteria and more industry news items are featured.

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Test Drive

With further aero refinements and an intuitive transmission, the Pinnacle proves its lofty name is well deserved.

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Oil & 2010 Tech

Most manufacturers have yet to extend change intervals, but oil seems to thrive in the new engines.

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Engine Spot

Where Mack's 13-liter MaxiCruise distinguishes itself from its predecessors, is in its horsepower offerings relative to the engine’s rpm level.

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Test Drive

Mack’s new automated manual transmission reads the road and makes the right calls to tame the Appalachian slopes.

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2010 Engine Performance

Manufacturers say EPA-driven changes yield better fuel economy and other benefits.

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