Noticed that Advance Auto was selling the Castrol Edge w/Syntec (Full synthetic) 5W-40 European formula for $29 w/filter. But the filiter was only good for up to $6.99. But there was also a $7 mail in rebate with the deal. I use to use the Castrol Syntec in my Turbo VW without any issues. Anyone on here use it in their Crossfires?