When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Nissan dealer put 10W-30 in my car and oil pressure is running very high when cold (this is what you get with a "free" oil change). I checked the manual, it says 10W-30 is fine. But I'd still prefer a lower weight or viscosity or whatever.
I'm going to swap it with 5W-30 (maybe royal purple as suggested) and hope it goes down a bit.