Quote (FMX_89 @ Nov 24 2013 02:30pm)
It breaks down really, really fast. Like super fast. Little resistance to shearing and fuel dilution is almost immediate in gas vehicles. For the money you are better off with Redline, Amsoil, or slide back to Pennzoil Platinum or Castrol Syntec. You could use a niche oil like Brad Penn.
For who knows what reason I ran royal purple in my old 09 focus before it got totaled. Obviously there weren't any issues by 50,000miles when it got wrecked but it always seemed like brand new when I changed it at least.