Oil Nerds Info

Jordo!

Sort of -- allegedly the DLC coating on the valve train has a greater affinity for ester oils (or at least Nissan's magic blend), but other non-ester oils will still bond, just not as well.

That said, I have a feeling the difference only matters for long term drivetrain wear (and noise) if anything -- meaning if the motor held together for 300K miles, then a head lubed with ester oil would have less wear than one that used another blend.

of course, if the rest of the motor tends to **** the bed 100K before that then it's all academic...

As to temps, at least on a few glances at the oil temps after hard driving, I'd say the Castrol ran about 5* or so cooler than the Redline is (and keep in mind it is finally getting a bit chilly in FL too...), but I won't know for certain unless I can observe it on the dyno which can really heat up the oil in short order, as well as give me a way of evaluating time to cool down for subsequent runs.

I think I'll switch back to the German Castrol on the next one and compare and contrast with Redline after 4K.

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