Good morning! I have a 2007 Buick Rendezvous with the 3.5L LX9 engine. Been toying with the idea of trying a 0W-20 in it. Why? Just because. I know it isn't necessary due to climate, I know it's not spec'd that way from factory, and I know it's not going to benefit gas mileage much. I'm simply curious what the UOA will look like compared to my typical M1 5W-30 run. Anyone here already tried 0W-20 in a GM 60* V6? Thanks.