The OP's story is a little similar to mine, I walked into Wally's for with an OCI for the KIA in mind and was going to buy on price. On a whim walked out with PP 10w30 in the High Mileage version which was on rollback. Yes it does run quiet. I too have had negative noise issues with M1 in some vehicles, along with consumption. So I got away from it. But then I tried M1 AFE 0w30 in the Lincoln and it is both quiet and had not had any consumption issues either. It is darker at 5k than I am accustomed to but I am not at all concerned. More reading of experiences of others here yielded the impression that if you want a quiet M1 try AFE.