Valve adjustment cost?

I’ve got a 2020 Cascadia with approximately 491K miles and it has a DD15. I plan on getting the valves adjusted in a couple of weeks. Has anyone ever done them in 2024 and if so, how much were you charged and how long does it take? Do you also need an oil change with a valve adjustment job?

 

I greatly appreciate it. I was planning on getting an oil change done tomorrow, but I’ll wait. I usually do them every 15K miles. My Jakes are good right now, but I’ll definitely be telling them to adjust that and the injectors. I average 8.0-8.2 MPG doing 66-67MPH. I wonder if the adjustment will raise my MPG

 

I went to Freightliner and they said they would do it for $625, not including parts like seals. I’ll be doing the valve adjustment this week and I’ll be changing my oil intervals to 20K miles. I know it can last more, but I’d just rather change the fuel filter and air filter as well with it. It’s the peace of mind I like.

 

I got the valve adjustment job done today with 495,200 miles. Unfortunately I didn’t ask to get a compression test done before the job, but here are the test results after Doggett Freightliner’s valve adjustment. Truck is running smoother and a bit quieter.