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A court in the United Kingdom ruled that Volkswagen AG used a so-called defeat device to help its diesel vehicles beat emissions tests, a decision that allows 91,000 customers to proceed with a class action against the carmaker.

Many trucking companies add various aerodynamic systems to their trailers to boost fuel economy, but how much fuel can these products truly save in real-world operating conditions?

Oil soared after President Trump said that he expects Saudi Arabia and Russia to cut output back by 10 million barrels or more after he spoke with Crown Prince Mohammed Bin Salman.

Oil tanks at one of the world’s largest storage hubs on Africa’s southern tip already are almost full, limiting traders’ options as a historic flood of crude hits the market.

President Donald Trump said the U.S. would meet with Saudi Arabia and Russia with the goal of stanching a historic plunge in oil prices.

With jets grounded and cars parked, diesel fuel for trucking is giving some relief to refiners as the coronavirus spread cuts deep into demand.

The Trump administration rolled back ambitious Obama-era vehicle mileage standards March 31, raising the ceiling on damaging fossil fuel emissions for years to come and gutting one of the United States’ biggest efforts against climate change.

Travel center chains along one of the nation’s busiest freight corridors are offering free meals and parking to truck drivers making deliveries to help the nation battle the COVID-19 virus.

The U.S. average retail price of diesel fell 7.3 cents to $2.586 per gallon, the Department of Energy reported March 30.

The Trump administration will dramatically relax automobile emissions and fuel economy standards so that only modest efficiency gains are required through 2026, according to people familiar with the matter.