paccar mx-13 oil usage?

I have a 2015 peterbilt 587,... combined with a Eaton 10 speed and paccars mx-13, it has less that 30,000 miles on the truck and I've put 2 gallons of oil in the truck on the last 10 thousand miles, I don't think it's because break in.. but then again maybe it is, to me it just seems like a lot of oil usage and it's not leaking I've been idling off and on for 4 hours and I got a low oil warning just now with nothing under the truck other then the normal ac stuff

 

Anyone alive out there?

 

Yea, I've come to a conclusion that I need to get to peterbilt.. im also gonna call my peterbilt rep from the company. To me it sounds like a ring, but it's been sitting for a while so I'll check the oil in the morning and see if it's a milky color (coolant possible).

 

Not only that I can get a loaner through the leasing company, so that's a good thing all though, it might be a dang freightshaker

 

I'm going to do the pm next time I'm home in 3 weeks that should be 40,000 miles. On this oil