Serving Our Country!
Join Date: Jan 2008
Location: South Lyon, MI
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I just spent a few hours looking at Oil Change interval threads but didn't find too much from owners using Amsoil. I run 5w40 Amsoil now and I am not sure what to change it at. I know Ford says 5000 or 7500 but thats not synthetic oil. From everything I have read people are changing between 3000-15000 without bypass filter on a variety of oils. Amsoil runs $130 for 4 gallons and filter with the preferred customer price, So I would like to change at 10000 but I am not sure or 7500 with fuel filters everyother. I know I can always do an analysis but I would like to hear your opinions.
My assumption before the 6liter was you can pretty much double oil change intervals between conventional and synthetic. That doesn't seem to be the trend except a few people going to 15000.
So the question is specifically amsoil users and other synthetic oil users without bypass filters what interval are you using? and post type of oil please.
2008 ECLB FX4 all stock
Planning on: Spartan, full 5", EGR delete, 6"on 37's
Last edited by BDSford03; 01-01-2012 at 04:54 PM.