When the Tier rating program started in the U.S. in 1996, the goal was to reduce nitrogen oxide and particulate matter from the exhaust of diesel engines. Since then, engine technology has been ...

To make Tier 4 diesels perform to EPA standards, off-road equipment design engineers and manufacturers have had to tighten the cause-and-effect integration between components such as hydraulics, ...

As more machines with engines meeting strict Tier-4 emissions requirements arrive on job sites, those charged with caring for these units are beginning to ask if the generally hotter and more ...

DES MOINES, Iowa (IOWA CAPITAL DISPATCH) - John Deere announced Tuesday all of its Tier 4 diesel engines were approved for B30 fuels, a fuel blend with up to 30% biodiesel. Iowa Renewable Fuels ...

Additionally, engines from MTU’s Series 2000 and 4000 product lines, which are designed for heavy-duty mining applications such as mine haul trucks and excavators, will be on display, including the ...

Vicksburg, Miss. based Golding Barge Line has commissioned its newest vessel, Scott Golding, built by Vessel Repair, in Port Arthur, Texas. The new towboat features a pair of Mitsubishi EPA Tier 4 ...