If you're doing any traveling this weekend, you've probaly notice prices at the pump are on the rise. The temperatures are rising, and so are the gas prices.

"I don't believe it's been this high," says Robert Potter. "I certainly hope they're not going to go any higher. It's about $40 to fill up every time," says Paula Klinksick.

The rising numbers are making drivers reluctant to fill up. "They're too darn high, and I really can't afford to buy that much. That's why I get $10 at a time," says Arlene King.

Gas prices in Topeka average about $1.99 a gallon for regular unleaded, and they don't show any signs of dropping. "The wholesale price has gone up about 20 cents in the past two weeks. Thirteen of that was in the past week," says President of Capital City Oil, Marvin Spees. He says the increase is partly due to the upcoming summer driving season. He says it's also the time of year when some oil refineries shut down temporarily to make changes.

But another reason for the high prices is ... too many types of gas.
Fifteen years ago, one refiner told me they were making seven grades of no-lead gasoline, and today they're making approximately 70 grades of no-lead gasoline. He says many cities require a specific kind of gas, making distribution a tougher job.

"We need to get a national gasoline specification, and then probably 10 to 20% reduction in price could be seen if we didn't have to worry about getting the right gas in the right place at the right time," says Spees.

But for consumers to get places on time, they'll just have to pay the price. "We try to drive the car more often because it gets better gas mileage," says Klinksick. "I don't go anywhere unless I have to," says Polter.

Spees says there won't be a cap on gas prices any time soon. "I would expect it to go quite a bit higher before it gets better." Experts say other reasons for the high prices are rising crude oil prices, cuts in production, and a shortage of oil refineries.