Switching to synthetic oil problem

[TheSilkySmooth]

I run HDEO Rotella T 10w-30. The engine runs much smoother with it than any syn I had in there(synpower, syntec). The GF4 energy conserving oils are very thin at high temp - high shear rate and can cause piston slap. Also, they are missing the generous % of antiwear agents that the earlier spec oil had. They removed these agents to protect the catalyst through the warranty period, since the agents can plate over the catalyst metals and render them inneffective. The Rotella has the EP antiwear anti-galling agents in good percentage to prtoect the engine. This engine will not use oil through a 5K mile Oci, so, catalyst poisoning is a moot point.