Totally agree. I poised these same questions when I first signed on. Result: got to do a UOA to see what's going on to get a better "feel." I was worried about our new car using the Quak. State 5W-20, did a UOA and posted it here and sought replies, and got some. Oil actually held up pretty good. This was dino version changed every 3K, oil could have made it to 4K according to the oil guru's. One thing I have learned since being on this board, EVERY engine will behave differently with different oils. Seems like the trick is to experiment with oils and then do a UOA and find the happy medium. I mean, it only cost 20 bucks for the analysis. Pretty cheap if you can get the right combo and prolong your engine life and extra 100K or so. Hate to say it, but I'm really leaning towards the 0W-20 Mobil 1. It's almost a low 30 weight by specs and seems to do rather well on the UOA's. I have been a dino man since I was can rememeber.
[ July 17, 2003, 09:37 AM: Message edited by: Schmoe ]