MILWAUKEE (CBS 58) — Drivers may have gotten whiplash Wednesday, Sept. 16, while driving past gas stations throughout southeast Wisconsin.

But those prices were not mistakes: The average price of gas in Milwaukee jumped by an average of 25 cents per gallon overnight.

That market volatility is costing drivers big-time.

The highest price we saw for regular gas was $4.99. The highest diesel price we saw was $6.99.

Plenty of people told us they're changing their habits and how they work in order to try to save some money.

At the Shell station at 58th and Beloit, driver Ann Chapman told us, "I actually backtracked two, three miles from my last stop to come here and get some gas."

Chapman told us she was willing to wait in line to save a few bucks, one of many drivers lined up all day to get gas for $3.69.

Most stations had regular at well over $4 a gallon, with some approaching $5.

Driver Jovonte Larry said, "You gotta spend 30, 40, 50 dollars, 60 just to fill up your tank."

Premium prices hit even harder.

Evelyn Carlos' BMW requires premium.

"Usually it takes about 60... 60 doesn't even get me halfway," she said.

And analysts don't see a correction coming soon.

Patrick DeHaan, head of petroleum analysis at GasBuddy, said, "Unfortunately, tomorrow I'm still going to wake up and see these high gas prices, which jumped again today across Milwaukee."

Wisconsin's average price for regular gas topped $4.11 Wednesday, and diesel averaged $6.13.

One year ago, regular averaged $2.89 and diesel averaged $3.45. That means a 15-gallon car is paying $18.30 more per fill-up.

Truck drivers are also getting hammered by record-high diesel prices.

Truck driver David told us he fills up "71 gallons every day."

"Every single day?"

"Every day."

Truck driver Francisco Robles said, "To fill it up on fuel, it's going to be $520."

Robles said he saved $80 by finding diesel for "just" $5.09. Down the street, it was $6.50, and in Walker's Point, diesel was going for $6.99.

DeHaan told us diesel prices are susceptible to more factors. Right now, supply is being hurt by the Iran war, Ukraine damaging Russian refineries and a recent power outage at a refinery outside Chicago.

And the market is slow to recover.

"What it will require is some sort of de-escalation to address the problem," DeHaan said.

Time alone will not help. Action will.

Until that happens, drivers are stuck looking for whatever deals they can find.

"You do have to make some decisions and cut some things," Chapman said.

"Everything is going up. Rent's going up, electric prices are going up, so it makes it harder on the community," Larry said.

The manager of the Shell at 58th and Beloit told us off camera they're intentionally keeping prices low.

On Tuesday, his station ran dry because so many people filled up.