Mobil 1 is always on sale. At $15 quart for Nissan , you're in Redline and Amsoil territory.!
You're looking at $6/qt for M1 EP at walmart. !
and I think Nissan Ester oil is
made by Motul. It may not be the same as what Motul sells in their bottles. So may find that between the price of M1 EP and Redline but still less than Nissan.
lots of options.