Wanted to see how OE would perform taking it past the suggested 5k mile manufacturers interval. By the looks of things, no worries taking this oil between 8-9k miles, despite thinning out of the 30 weight range ever so slightly. This is the wife's car and the majority are city miles - north of 60%. The previous UOA was Phillips 66 Shield Choice 10w30, and prior to that, Amsoil XL 0w20. I'll let you all draw your own conclusions between the two Amsoil results based on miles and viscosities. I've got Valvoline full synthetic MaxLife 5w30 in it now, so look for a UOA on it sometime this summer.