OK guys. I said to neurotic self, I had to try this after a dare from someone on this site. They said, "WHy doesn't someone use it"? Its a PAO. It meets the A-3 and alll those requirments GC meets so, again I say what the hell. Dumped the oil for about 3 hours, just let it drip, and drip and drip. OH YEAH, I GOT MY G3 FRAM OIL DRAIN PUT ON! Going to make life so much simpler. Put on a K&N 1010. And 5 qts of Quaker State 5w50 synthetic oil. Don't know much more then that except, hey it runs, its quiet. ANd I am not making any more claims until I see what this oil does. I did put it to my gas stove pan test. High heat. No smoking, no burning. just the occasional bubble. Like the Mobil 1. Take a dino and do that and see how many smoke detectors go off in the house. so hey looks like a good oil so far. Meets more requirments then Mobil 1. Lets open our minds, this oil could take us from Spring all the way to winter. I like the idea of one oil. High heat protection of the 50 wt with the cold wt of the 5. Bring it on. I do have to say. and this is confirmed, I get NO lifter noise or whatever it is with the K&N filter. So I think a good filter is worth the money. no matter which oil you use. I'll let you guys know how it goes. Maybe we can send my first oil test in for this QS 5/50. Im sure there are some poeople who are wondering. QS used to have a great oil, back in the 80's/ I remember using the Quaker State DeLux oil. But NEVER, OH NEVER USE THE PENZOIL BACK THEN. MAYBE THINGS HAVE CHANGED.