Thoughts on purchasing a higher-mileage Duramax?

[CTown Duramax]

We have a diesel Guru tech at our GMC. Great guy, has said most all you mentioned. The oil consumption is a baffle in the valve cover. They replace the valve cover. Only effects 20-21's . . . . .now and charge more for it. Its not fun anymore, its offensive. I can buy anything i want, but i won't. 85K for a GM truck...its crazy. A Mercedes GLS is 97K and very luxurious and high quality. Yes they have issues as all trucks do. At 100K I'll be out of warranty and fix what breaks.

Do you know where I can find the relevant VIN ranges?

 

[TiGrayMSM]

Do you know where I can find the relevant VIN ranges?

There is no VIN range, it is dependent on the serial number of your camshaft housing. If your camshaft housing serial number is less than 21298JDXXX, you are within the range for the TSB (22-NA-027). The serial number is very easy to check. It is at the very front left (passenger side) corner of the camshaft housing. Use a large screwdriver to push back the foam/insulation pad and you will see your serial number.