Switched from RP to Germ Castrol
I know (sorry)This stuff rocks, my engine idles soooo much smoother than it did on Royal Purple (which I have used for some time now) it is the Castrol European 0w-30 made in germany printed on the bottle. I have never really given much thought to the different brands but I am really suprised on how the car is performing after 1000+ miles it feels like I just tuned it up, so If anyone is considering a change or not I just wanted to give it my vote!

