I use Royal Purple but used to use Castrol German. I get my oil at work at cost plus 5 is why I am using RP. I have also used Mobil 1 on my old 2001 Z28.
Bill
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2011 Camaro 2SS/RS L99 RJT
CAI, Inc. Cold Air Induction;ADM Scoop
Rx Catch Can;Rx Breather;Roto-Fab Washer Container
VMax Ported RJT Throttle Body
XSPower Headers and XSPower 3" Exhaust System
Elite Engineering Tunnel Brace,
Gorilla Wheel Lock System; Bear Rotors, Hawk HPS
Tinted Windows 35%;EFILive Tune
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