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A new high-temperature steel alloy rendering engines more durable and efficient has been developed by a team from Cummins Inc. and Oak Ridge National Laboratory.

Iowa is leading 19 states in a lawsuit against the U.S. Environmental Protection Agency for backing California’s future ban on heavy diesel vehicles.

Ascend Elements said it has reached a billion-dollar deal with an unnamed automaker to reprocess old batteries into cathode material, at a plant it is building in Hopkinsville, Ky.

Stellantis NV and LG Energy Solution Ltd. are reviewing an offer from the Canadian and Ontario governments to salvage an electric vehicle battery plant in Windsor, across from Detroit.

WASHINGTON — Accelera by Cummins on June 5 showcased a hydrogen-powered emergency vehicle that advances technologies applicable to the commercial trucking industry.

Diesel prices fell by a nationwide average of 5.8 cents to $3.797 a gallon, according to Energy Information Administration data released June 5.

NASHVILLE, Tenn. — Kentucky officials say they are pausing $21 million in economic incentives to Microvast for a proposed electric vehicle battery facility.

General Motors Co. and Stellantis NV paid a combined $363 million in civil penalties for failing to meet U.S. fuel efficiency standards, according to filings with federal regulators.

Rivian Automotive Inc. may get pushed out of the Nasdaq 100 Index as early as this month after plunging more than 90% from its record high, according to JP Morgan Securities.

The U.S. and European Union have agreed that when a megawatt charging standard is developed for heavy trucks, it must be universal.