Cummins

Heavy-duty truck w/Tula dDSF

Tech: New Technology Reduces Diesel Emissions

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Tula Technology’s dDSF may take the already quite clean (especially compared with engines of just a little more than a decade ago) heavy-duty diesel engines to a level that reduces smog-producing emissions while increasing fuel economy and yet not losing any performance. The technology study was announced last month by Cummins, the largest heavy-duty engine manufacturer, and Tula, a technology innovator in Silicon Valley that has become a supplier to OEMs.

Tula Technology Dynamic Skip Fire

News: Cummins and Tula Work Together To Advance Diesel Tech

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Cummins, one of the world’s leading diesel engine maker, has joined forces with Tula Technology, a California start-up, to explore a sophisticated cylinder deactivation system that could solve the conundrum. If it’s proven, the result would be a diesel engine that could reach a near-zero emissions level.

First Drive: 2016 Nissan Titan XD

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Nissan came up with is a truck midway between a half and three-quarter ton, added a brand-name diesel engine for power and towing, and hopes the 2016 Nissan Titan XD will appeal to many of those 150,000 who want something more than the small pickup and not as much as the larger one.