Switching to synthetic oil problem

[SilverGlow]

Originally Posted by 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.

More BS from you, as usual.

The actual scientific data shows that 0w oils are not necessarily thinner at full operational temperatures.

For example 0w-30 and 10w-30 are both the same thickness at 212F.

Same for 0w-20, and 5w-20.

These 0w oils in fact have a lower shear rate then mineral...Grumpy, ArcoGraphite, and all the other many names you have, why do you keep posting BS here and other forums?