I've read that nissan vq engine prefers a heavier oil then the recommended 5w30. I've had good results from using GC 0w30 in my toyota and would love to use it in the vq40 but it's an SL rated and I need an SN. Would it harm anything to go ahead and use the GC? Or should I give mobil 1 0w40 a go? I don't mind losing a few mpg's if I'm getting better protection from the oil.
Thanks
Thanks
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