Dropped by the service dept and they had me worried. Please help to confirm

MacCool

I figure that the manufacturer, who is also on the hook for warranty claims, knows better. You're correct. I follow the recommendations in the manual. I see no reason to try to second guess Nissan, no matter how dirty the oil "looks".

SouthArk370Z

It's impossible to judge lubricants by any of our senses. I've seen good looking/feeling lubes test bad and vice versa.

Yes, manufacturer recommendations for specs and change intervals are usually good enough to get a vehicle past the warranty period. But they aren't gospel and they aren't the best plan if you like mechanical things and want to treat them right - especially if you like to run them hard.

You can't change lubes too often (after break-in). The worst you are going to do is waste a little money and you might end up saving a critical part. When in doubt, change it.

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kenchan

Blah blah blah... I actually respect fountain's post cause he's honest
It was fun for him to do the work.