Gas prices are going up, so if you're looking to save money when filling up here in Minnesota, don't make this mistake!

When I was a kid it seemed like my dad would drive all over town so he could find the absolute cheapest gasoline price. (This was way before apps like GasBuddy tracked the price for you.) Even though the price might have only been a few cents cheaper at a gas station way on the other side of the city, he thought-- hey, at least I'm saving money. (Of course, that didn't include the gas we wasted driving all over just to save a few cents per gallon...)

But, according to AAA, there IS one mistake some of us make while buying gasoline-- and it could be costing you some serious cash. So what's the most expensive mistake we make while filling up at the pump?

It's buying premium gas. And, yeah, it's way more expensive than regular unleaded. Right now, Gas Buddy says regular unleaded is selling for $2.69 here in Rochester, while premium runs you anywhere from $3.09 all the way up to $3.39 a gallon.

But here's the thing. This NBC news story from KARE-11 says that even if your car's instruction manual (or even the note on your gas cap) says that premium gasoline is 'recommended' for your car, it doesn't really need it. Sure, there are some cars where premium is required, but those cars are in the minority, the story said.

In fact, 84% of cars don't need premium fuel, but people are still buying it anyway. And, the average driver could save around $300 a year if they switched from premium fuel to regular, the story said. So, yeah. Stick to the regular unleaded and you'll be saving yourself from making an expensive mistake at the pump!

Luckily, I've never been able to afford one of those expensive, fancy cars that require premium gasoline, so this hasn't been an issue for me. Of course, if you can afford to buy one of those really expensive cars, paying extra for premium probably isn't a problem either, is it?

Listen to Curt St. John from 6 to 10 a.m. on Quick Country 96.5
and from 10 a.m. to 2 p.m. on 103.9 The Doc

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