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The U.S. average retail price of diesel rose 4 cents to $3.006 a gallon, according to the Department of Energy. The price of crude oil climbed into the mid-fifty-dollar range, a three-month high, as international supplies tightened and concerns over a deeper trade war with China lessened.

The vehicles that will secure the next decade for General Motors Co. aren’t covered in self-driving sensors or loaded with batteries. No, the future depends on hulking pickup trucks that often run on diesel and cost more than the average BMW.

The U.S. average retail price of diesel was unchanged the week of Jan. 28 at $2.965 a gallon and now is about 10 cents a gallon cheaper than it was a year ago, according to the U.S. Energy Information Administration.

The U.S. average retail price of diesel dropped 3.5 cents to $3.013 a gallon, the U.S. Energy Information Administration reported Jan. 7, even as crude oil prices saw renewed vigor and broached the mark of $50 per barrel.

The U.S. average retail price of diesel dropped 4 cents to $3.121 a gallon, the U.S. Energy Information Administration reported Dec. 17, as crude oil prices dropped below $50 per barrel.

The U.S. average retail price of diesel dropped 4.6 cents to $3.161 a gallon, the U.S. Energy Information Administration reported Dec. 10, as crude oil prices dropped near $50 a barrel.

The U.S. average retail price of diesel dropped 2.1 cents to $3.261 a gallon the U.S. Energy Information Administration reported Nov. 26 as crude oil prices continued to stay low.

The U.S. average retail price of diesel dropped 3.5 cents to $3.282 a gallon in data reported Nov. 19 as crude oil prices fell amid persistent concerns about oversupply.

The average price of diesel dropped for the second consecutive week, the U.S. Energy Information Administration reported.

Diesel fuel still has a large role to play in achieving greater emissions reductions in heavy-duty trucks, experts said during a recent conference in San Francisco. Separately, they urged more in-use testing of engines to verify the gains, and increased use of renewable diesel, which is chemically similar to petroleum diesel, but cleaner.