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Diesel Engines

For vehicles being put back into service after a prolonged period — particularly in wintertime — fleets should follow these best practices when replacing diesel exhaust fluid (DEF) and engine oil to avoid mechanical issues and keep vehicles running smoothly.

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Cummins Reveals 2021 HD Engine Lineup

Cummins EPA 2021 X12 and X15 series engines expand the availability of some current technologies while adding new features to further enhance fuel efficiency and lower operating cost.

Diesel Pickups, SUVs Gaining Share

Diesel engine sales are up to 3.4% year to date in the Class 2 and 3 commercial diesel segments compared to 2.2% in 2019. New diesel options are coming for Jeep Gladiator, Chevrolet Suburban and Tahoe, and GMC Yukon and Yukon XL, and Cadillac Escalade.

New-Gen Diesel-Powered Trucks Vital To Clean Air Goals

Rapidly accelerating the turnover of the existing fleet to the newest generation of diesel technology, as well as expanding the use of low-carbon advanced biofuels, can deliver benefits today, and should not be overlooked, said the Diesel Technology Forum.