Mike Lentz, of Westminster, said it costs around $150 to fill up the 36-gallon tank on his Dodge Ram truck with diesel fuel at the Oceanic station on Md. 140 Tuesday.
That price may go up if the gas tax is increased in Maryland.
The price of gas is high enough as it is, Lentz said.
"I don't want an increase. I think it's wrong, we've got enough taxes," he said.
Last year, Gov. Martin O'Malley proposed a 6 percent sales tax on gasoline. The plan stalled as gas prices were on the rise last year.
Senate President Thomas V. Mike Miller, D-Calvert, has made proposals this year, which include allowing county governments to raise up to five cents per gallon on gas sales. The state already has a 23.5-cents-per-gallon tax, which hasn't been raised since 1992.
Miller has also proposed a 3 percent sales tax on gasoline.
The additional funding would be put toward transportation projects, and help finance transit services and facilities, according to Miller's proposals.
Maryland House Republicans held a news conference Tuesday in Annapolis criticizing the proposals.
"We adamantly disagree with the proposal put forth by the Senate President to raise the gas tax on motorists," said Del. Susan Krebs, R-District 9B.
"The fact is motorists are already paying plenty to take care of our roads and bridges," Krebs said. "We do not need a gas tax increase."
According to state statistics, more than 83 percent of people in Maryland either commute by driving or carpooling, and less than nine percent use mass transit.
Krebs said she is against raising more taxes on motorists to help pay for mass transportation projects. The tax dollars from motorists should be put toward roads, highways and bridges, she said.
Money has been taken from the Transportation Trust Fund for years which has led to $1 billion in funds not repaid, Krebs said.
She has proposed a constitutional amendment which puts a lockbox on the Transportation Trust Fund by putting measures in place that hinder the ability to divert money from the fund and use it for non-transportation uses.
On Tuesday, Miller responded by calling the House Republicans against the tax "Neanderthals in terms of their thinking," according to the Associated Press.
There are serious transportation needs in the state, Miller said.
"I know the governor wants to do something, but he wants to get a consensus," Miller said. "He wants the House and the Senate and himself to agree on something before he moves forward, so that he won't have the failure like he did last year where he threw out an idea and didn't work to make it happen."
Any gas tax would result in job loses around the state, according to Dave Schwartz, state director of the Americans for Prosperity Foundation, an organization centered on economic freedom.
The foundation is releasing a study on the effects of gas taxes on Maryland's middle class today at the House of Delegates Building in Annapolis.
The study, conducted by Baltimore-based public policy group SAGE, shows how a gas tax would directly affect the middle class and indirectly affect the economy, Schwartz said.
