I can not understand how anyone would be worrying or even thinking about a "tick" in this engine as a problem. I have NEVER in my life heard an engine that didn't tick. Carbeurated engines MIGHT be a different story, although they also tick a little. Fuel injected engines WILL TICK...forever.
I also can't see the point in running a different viscosity oil than what is recommended. I have ran German Castrol 0W-30 since 5000 miles, now have 20,000 and have NEVER had a problem - even with the abuse I subject it to. That's the same story for the previous 3 vehicles...2007 Altima 3.5SE, Corolla CE and 90 Camry DX.
They tick. If there's some obnoxious knock or rattle, then worry and post up. Otherwise, if it doesn't tick, then fuel isn't being supplied to the engine and you THEN have a problem.
Late,
Trav
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