Equipment

Speed limiter rule coming? DOT report says yes, and could be this year

Joining an already full trucking regulatory docket this year could be a rule that requires trucks to use speed limiters, though what the limited speed may be isn’t known.

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Questioning combustion: New engine designs question century-old engine concepts

Diesels engines modified to run on gasoline and a gasoline engine that doesn't use spark plugs to initiate combustion? Though these may sound far-fetched, they're two examples Overdrive Equipment Editor Jack Roberts notes in a blog post on innovative engine design on OD sister site ...

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ISX12 to join offerings in Cummins, Eaton powertrain partnership

The Cummins ISX12 will soon be available in the SmartAdvantage powertrain partnership between Cummins and Eaton, the two companies announced this week at the American Trucking Associations' annual Technology & Maintenance Council.

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Changing Gear: Updates from Circle R, Air-Weigh, Road Choice, Meritor, ATDynamics

Sounds like these two companies could make hay at making weight. Circle R Side Dump has made Air-Weigh’s digital QuickLoad Trailer Scale standard on its 37-foot SuperCube high-capacity side dump trailer. The QuickLoad Trailer Scale includes molded electrical and air connections, and when displaying weight, ...

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CARB proposes delaying, changing some emissions requirements for owner-operators

California's Air Resources Board this week officially unveiled some proposed changes to its Truck & Bus Rule emissions regulations, potentially allowing owner-operators and small fleets some additional routes to compliance.

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Navistar stresses vocational commitment

The company refined SCR transition schedules and introduced new vocational options -- and the TerraStar bagged work truck of the year awards.

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Gaining turbo boost: Start with a new muffler, then look at air intake

Instead of opting for a larger turbo, opt to make you engine run "free," by allowing better exhaust flow, writes Bruce Mallinson. That'll then yield better fuel mileage, performance and longevity.

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Mobil Delvac engineer talks natural gas engine oil, low-viscosity trends

Prior to the Technology Maintenance Council’s annual Meeting, Overdrive sister site CCJ talked to Lilo Hurtado, applications engineer, ExxonMobil Fuels and Lubricants, about natural gas engine oil and the upcoming introduction of the low viscosity oil category. Here's the question and answer session:  CCJ: Tell us about ...

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