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# Diesel Just Hit $6.24 in Idaho, and That Is the Number to Watch
- URL: https://blog.dwightdavis.com/diesel-just-hit-6-24-in-idaho-and-that-is-the-number-to-watch/
- Published: 2026-09-16T15:58:51.000Z
- Updated: 2026-09-16T15:58:51.000Z
- Author: Dwight Davis

AAA Idaho says diesel hit $6.24 a gallon on Wednesday, a new record for the state. It was up about 7 cents from Tuesday and 30 cents from a week ago. Regular unleaded is $4.85 statewide and $4.86 in Boise, up 12 cents on the week. CBS2 ran the numbers this morning ([https://idahonews.com/news/local/aaa-idaho-reports-idaho-diesel-hits-624-a-gallon-as-prices-climb-again](https://idahonews.com/news/local/aaa-idaho-reports-idaho-diesel-hits-624-a-gallon-as-prices-climb-again?ref=blog.dwightdavis.com)), and that is the whole story. No cause given, no one quoted.

The gas price is what people will talk about at the pump, because that is the number most of us pay. Diesel is the number to watch if you care about the businesses around you. The roofer's crew truck, the landscaper's trailer, the concrete truck, the delivery van, the tractor out in Canyon County, the semi bringing your groceries into the valley. Almost all of it runs on diesel, and none of those people can pass a 30 cent jump through in a week. The bid was already in. The route was already priced. The contract was signed in July.

I spent years around home building and roofing before I ever did anything on a computer, and fuel was the cost nobody put on the estimate and everybody paid. You bid the job at one price, you drove to it at another, and the difference came out of the margin because there was nowhere else for it to come from. A homeowner does not want to hear that their roof costs more because of the truck. So the truck gets absorbed, and a small outfit absorbs it a tank at a time until the quarter ends and somebody wonders where the money went.

That is why I watch diesel more than gas. A household feels gas. Everyone who builds, hauls, mows, pours and delivers feels diesel, and they feel it first. By the time it shows up in the price of a yard cleanup or a load of gravel, it has been sitting on the contractor's books for weeks.

The article does not say why the price moved, and I am not going to guess. What I can say is that $6.24 is going to be on a lot of whiteboards in shops across the Treasure Valley this week, and the people looking at it are trying to decide whether to eat it or raise a price on a customer they have had for years. Neither answer feels good.

If you run trucks, I would like to know what you are doing about it. And if you hire the people who run trucks, it might be worth asking them how they are doing before the invoice does it for you.