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Ford Explorer Community - Maintenance - Modifications - Performance Upgrades - Problem Solving - Off-Road - Street
Explorer Forum Covers the Explorer ST, Explorer Sport, Explorer Sport Trac, Lincoln Aviator, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Ford Aerostar
Welcome to the site. You can do a search for oil and it will have most of the answers you need.
If I were you I would check the manual or the fill cap I think Ford wants 5w30 in the engines now.
Personally I use a synthetic(Mobil1) 5w30 in my(older) Explorer every 7500 miles. I change the filter with the oil and one time between oil changes( say 3500-4000miles).
Youll get plenty of opinions on this but thats my take, do a search there was an excellent thread on Synth oils a while back should answer your question.
I use Valvoline Max life 10w30 and a Fram oil filter every 3500 miles. The truck has 130,000 miles on the original engine (knock on wood) and still runs great. Therefore, I am stickin' with it!
Ive been running Greased Lightings fully synthetic 5w 30 and its been great so far..Cost about half the price of big name synthetics.I always use a big name synthetic filter ...I know I dont need to but I change it every 2900-3K just to be safe and always have clean oil...Its so cheap you can afford to as well. I wasnt sure about using that oil,but it is pure DuPont teflon,so i know its not gonna hurt. anyway thats my .02