question about oil life span
 

Hope this post fits here. Under normal driving how long or how many miles do you guys get out of Mobil 1. is it still best to change ever 3 thousand miles
or can you go at least up to 5 thousand without any issues.

Even Nissan says you can go 3750 miles under normal driving conditions...

You should be able to get 5000 miles from a good synthetic like Mobil 1.

You might want to post this question (or do some research) over at bobistheoilguy.com