I actually brought my truck in for service to have the front end checked, as it makes a tremendous amount of racket on cold mornings. Also in for a scheduled transmission flush.
The dealer couldn't diagnose that problem because they left the truck in the shop overnight (and never got cold enough), but the "low engine oil" light came on while they were testing it.
Turns out, it had burned over 2 quarters since the last oil change there about 4,000 miles before. The dealer is now doing an "oil consumption test" to determine if my truck needs a repair. I am supposed to check back when them after 2,000 miles or when my oil light comes on again. They did a great job looking for this. I knew my truck burned oil, but it has been getting worse lately.
A google search indicates that this is a widespread problem. What fixes are in? Do they disable the AFM? I have a sneaking suspicion that the AFM is the problem, as my truck has been known to burn oil during highway jaunts....it just never had this big of an appetite for Mobile 1 synthetic before.
Also, anyone who own a T900 ever hear what sounds like bad bushings up front? It sounds like metal scraping concrete when you go over bumps in cold weather. I'm still on a quest to fix that regardless of the oil problem. It's coming from the upper parts of the suspension on the driver's side...almost like it is right behind the steering wheel.