The Nissan Path

Hi to all Nissan owners , I just recently purchased a 1995 Pathfinder XE 4x4/Auto 156k miles. I've been searching everywhere for what engine oil and filter to put on it so thought i'd start a post and see what you all think is the best option.I was browsing the manual and it says to use energy conserving oils identified as EC-I EC-II or improved fuel economy,what kind of oils have this feature?? Also, how many miles before I have to change it?? Thanks!

I use Wix filters (Napa Gold) and 10-40W oil, have been forever. There will be alot of opinions on the weight of the oil but I believe Wix is one of the best oil filters. How many miles does it have?

I'm not trying to take away from this forum, it's great, but you'll get alot more help at www.npora.ipbhost.com - good place for WD21's

I got the truck with 156k miles...