The numbers I quoted were post-diesel increase. But it's possible that the numbers are wrong or used a different diesel cost at the height of the spike or were using a diesel price from a really high-tax state or were using a really inefficient truck. The numbers I used would have seen diesel be about twice what you're spending, which is an insanely high multiple. I have no reason to think I'm righter than you, I'm just trying to troubleshoot the reason I was off.

The labor to maintenance/insurance/etc. ratio seems to track pretty accurately. So maybe I should have said 3/6, 2/6 and 1/6 respectively (since the other responder wanted the same denominator).

We're really picky about fuel efficiency. We have aerodynamic equipment on all of our trailers, we give our drivers bonuses on mpg, and also give them 10% of the discount on the fuel cards as a bonus so they actually get on the app and find the cheapest fuel with the most discount. I've heard some fleets have $1+ per mile cost on fuel. Our equipment isn't new though, we bought used 2015 trucks in 2019.