I use less than a quart at every change - I just want to make sure it's "acceptable" lol - apparently GM says so - thanks for that, Bill. (I googled and saw some crazy oil consumption guidelines!)
I know the manual says use only 5W30, but would a heavier weight be acceptable? (esp in this HOT weather). I always use Mobil 1 - and my school of thought was always increase weight with mileage, to a certain extent.
Bill - I'm still learning - I understand what predetonation is, but can you explain how it negatively affects the engine?
Thanks again, guys.
