Retail diesel prices continued to climb last week, with the national average rising 3.6 cents to $3.903 a gallon, the third straight weekly increase, the Department of Energy reported.

Massachusetts became the latest state to increase its fuel taxes, with lawmakers approving a transportation-funding plan Wednesday that will add 3 cents to the state’s 21-cent-per-gallon diesel and gasoline taxes.

Retail diesel prices rose for a second straight week, hitting $3.867 a gallon after advancing 3.9 cents, while gasoline prices soared, according to the Department of Energy.

Love’s Travel Stops said it is now offering diesel exhaust fluid at the pump for truck drivers at its 245 U.S. locations.

A federal appeals court has ruled that Alabama discriminates against railroads because it makes them pay a sales tax on diesel fuel that truckers and other freight haulers do not have to pay.

The average pump price for a gallon of diesel edged up last week for the first time in seven weeks, increasing 1.1 cents to $3.828, the U.S. Department of Energy reported.

U.S. retail diesel prices hit their lowest level in more than 11 months last week as the national average dipped 2.1 cents to $3.817 a gallon, according to data from the Department of Energy.