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AUSTIN, Texas — Mack Trucks presented a new powertrain that it said was designed to meet the second stage of Phase 1 federal greenhouse-gas limits. Those limits tighten the maximum legal amount of carbon dioxide output from a truck starting in January.

Parcel and logistics company UPS Inc. posted first-quarter increases in revenue and net income despite the mixed economic situation — nationally and internationally — and also acknowledged it might have to take a charge against earnings of about $3.5 billion related to a pension issue.

Booming sales of dry and refrigerated vans enabled trailer maker Wabash National Corp. to post first-quarter records for sales and operating income as well as gains in net income and earnings per share, the company said April 26.

Federal regulators are intent on publishing the final version of Phase 2 of greenhouse-gas regulations for trucks by August, but recent comments on the proposal show an abundance of disagreement by truck and engine makers, industry and environmental advocates and manufacturers of glider kits.

AUSTIN, Texas — Mack Trucks celebrated Earth Day here by rolling out its 2017 powertrain designed to meet the second part of Phase 1 federal greenhouse-gas limits that start in January, including new technologies for its MP7 and MP8 engines.

Truck maker Paccar Inc. shuffled the deck on the leadership of its subsidiaries, sending Preston Feight to the Netherlands to serve as president of DAF Trucks and bringing Mike Dozier home from Australia to succeed Feight as general manager of Kenworth Truck Co.

Companies from Canada and Germany said they will launch a new event focused on the commercial fleet and heavy-duty truck market in Atlanta in late September of 2017.

U.S. crude oil production is expected to fall more this year and in 2017 than had been expected, and that should lead to a slow rise in crude oil and retail diesel and gasoline prices, the Department of Energy said in its latest Short-Term Energy Outlook released April 12.