I've been using the maxlife in my 6.0 GMC with 140,000 miles on it and it didn't burn oil before and still doesn't so I can't tell if it helps or not. On the other hand, I've been hearing more about oil consumption on the GM engines with active fuel management and with symptoms like you describe in your post, I'm curious if anyone has tried seafoam in either the engines oil or fuel to see if it would help free up the sticky oil control rings. I'm just thinking out loud here.
