[e2helper]

You might want to mention it to dealer next time you are there (if not already done).

I have seen a few cases of this. Seems to be related to just the 2006 3.5L.

Your driving pattern might make it especially noticeable. You mentioned a little about that - do you have a pretty regular drive? How far 1-way?

 

[e2helper]

Thx - I had confirmation today that THEY did find something and so a software update to PCM is in the works for this. I will try keep an eye out for any more information. Your dealer won't even know this much however make sure you get your concern documented next time you visit if not already done.

 

[e2helper]

As you probably know the algorithm for oil life is not calibrated for synthetic. It is only done that way on vehicles that are recommended/required to use synthetic.