Update: I've put over 100K on the 2010 4.6, so it was time for me to move on. I was never happy knowing the motor was a reman, but it proved to be reliable and got steady 19\23 mpg. By-pass filter got put back on after the warranty ran out and it kept my oil changes to 25K and the by-pass filter change at 50K. I tried the oil lab service once, it told me the same as looking at the oil...looks good.
I decided to replace the 2010 with a 2014 F150 5.0 after driving the Chevy & Dodge. Wife liked the Ford too. We take trips in the F150 instead of her 2014 Escape SE 2.0 EB.
Lesson learned in this exercise: it was worth my efforts to put a by-pass system on for me, as it extended the timeframe between changes. Even at 25K, the oil "looked" clean. I cut a by-pass filter apart...it was CERTAINLY doing its job as it was BLACK. But, if you're not a DIY'r, this "fun" is probably not worth your time.
2014 XLT Screw Texas Edition 5.0 - Mods: BAKFlip bed cover, running boards w\puddle LED's, Rhino-liner, front tow hooks, Weather-Tech's, USB-2 and 500gb HD, oil filter remote set-up, Hopkins back-up camera w\sensors, tailgate lock, outside mirror turn LED's, front & rear floorboard LED's, bed LED's, tailgate assist, RX catch can, back seat release.
Last edited by HouTxEngr; 05-28-2014 at 12:12 AM.