08-08-2010, 01:29 PM
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#1 (permalink)
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A True Z Fanatic
Join Date: May 2010
Location: SLC, UT
Posts: 1,671
Drives: '08 Evo X | '10 370Z
Rep Power: 19
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Quote:
Originally Posted by Jordo!
In theory, the Nissan oil has a higher affinity at the mollecular level to the DLC coated valve train -- in theory.
Supposedly, this is why Nissan recommends it and why it allegedly keeps the valve train running more smoothly.
However, whether or not that holds true is not well established, nor is it known whether any other similar ester oil (or a non-ester based synthetic) would work just as well.
I picked up the German 0-W30 -- looking forward to seeing how she runs with that.
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All good synthetics have additives that are designed to hydrogen or oxygen bond to metal components or the oil itself possesses an affinity for metal surfaces (like Red Line, Motul). I'm honestly not buying the Nissan claims... all good oils are capable of lubricating within a very, very fine film, even on a slick surface. I think what Ester oil may provide is enhanced lubrication of DLC-coated surfaces during startup and possibly shut down right as the valvetrain settles (spring tension).
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'10 PW 370Z 7AT - wife's car - Project Raspberry Cheesecake
'08 Evo X - built motor+trans | BB-X @ 32 psi | CH3OH | self-built+tuned - ??? WHP
'01 Galant V6 - built motor | GT35R | self-built+tuned - 550+ WHP (retired) |
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