Re: New to Navigators, just want some advice. thanks
I run 0W30 in my Taurus. It called for 5W20, but I changed over to Amsoil synthetics. haven't had any problems in the last several years (one oil change a year!).
I also bought a K&N drop in, but I found them messy and inconvenient to clean (gotta let it air dry after washing, then reoil so count on 1-2 days of downtime). I went with Amsoils EAA filter, which is paper gauze and NO OIL!
Stock filters work good too. With one of my older Dodge Spirits, I'd generally replace an air filter every 10K, for $5/air filter I couldn't say no.
As for maintenance things to check on top of what Bert mentioned above, I'd change out the axle fluid, transfer case fluid and get the coolant checked. If you remove the rad cap (make sure engine is cold), and you see a white sour milk like substance, you might want to consider a coolant flush and fill.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!