Originally Posted by
Anthony
Just tried Castrol Syntec Full Synthetic and yeah not much of a fan, making me idle rougher than when I was using Mobil 1. Might try Royal Purple or Amsoil if I can get a good price.
The evo world loves Royal Purple over Mobil1
Originally Posted by
TheOtherDave™
Wix 51334
Castrol GTX 5W30
in both cars?
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2016 BMW 340i M-Sport / 2013 Chevrolet Volt / 1999 Subaru Impreza RS EJ205