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In what could be another blow to consumers’ pocket books, diesel gas prices have now hit a national average of more than $4 per gallon.

Anlleyn Venegas, a spokesperson for AAA, said as the crisis continues, the likelihood that Russian leaders will drive up the prices of crude oil will only increase, which would drive up prices for diesel and gasoline even further.

“We just have to prepare for the worst,” she said.

While not many people drive diesel-powered vehicles, most truck drivers do, and that could lead to higher prices on goods and services.

Some truckers are having to modify their work habits.

“Loads that I used to do further, I just don’t do. I do shorter loads and more of them,” said Ontario resident and trucker Delante Harris.

Long-haul trucker Charles Musgrove added that some trucking work isn’t even making money for the drivers.

“There’s a lot of drivers complaining that the load that they’re taking is not even paying for the gas,” he said.