Didn't know where to post this, so move it if it needs to go elsewhere. Not looking for a Nissan mechanic, just a Nissan mechanic's knowledge.
What is considered high mileage for a switch to a full synthetic? I have wanted to for some time but haven't. Now my Frontier has almost 75K miles on it. Is this too high to switch to a synthetic, and which brand is most favored?
On the flip side, I just bought my wife a 2011 Murano. My plan is to switch to a synthetic around the 9K-12K mile mark. I don't want to change too early, but don't want to hit the 75K mark again without changing.
If I were to change without recommendations, I would choose Mobile 1.
Thanks in advance for the info.