Increased Valve Noise After Change To Amsoil

Jordo! · 08-29-2010, 03:43 PM

Quote:

Originally Posted by jpit

The G37 suffered from valve train noise and the solution was a software upgrade and using the Nissan ester oil. Road and Track was using Nissan ester in their long term
370Z and then switched to a conventional 5W-30 to see what would happen to the noise level. Valve train noise went up with the conventional oil. General consensus is that the increased valve train noise will not harm the engine.

My guess is the reflash just smoothed the transitions between various valve settings so make it run a little more quietly and the rest was the Este roil.

That last part is good to know, but who arrived at that conclusion -- R&T?

To the OP, as an experiment, you might try either the Nissan Ester oil or another band (e.g. Redline) on your next oil change and see if the valve ticking subsides.

Kinda curious to see what happens when I switch to the 0-W30 Castrol...

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