Originally Posted by SyN
Bryce: Congrats on those awesome #'s... It's really obvious you have taken really good care of your 7.3L... I would really have loved to have bought my 7.3L new...
1. How long have you had the AIS system installed?
2. How long are your OCI?
3. What oil have you been using during the 7.3L lifetime?
Alot of other questions... but I won't waste your time...
Congrats Again... This is just the payoff of good maintenance habits...
My AIS is only a few weeks OLD...Same with my Exhaust. maybe 1000 miles total.
I change the oil and filter every 5000 miles. Fuel Filter ever 10,000.
Motorcraft Filter (FL-1995) with Rotella-T 15-w40. Racor or Motorcraft (same thing) fuel filters.
I'm very particular about the service on my truck. I think the oil may have been changed 1 time by someone other than myself (the dealer). The Fuel filter has always been done by myself. Short of the new transmission, UVCH and IDM, the only other work not done by me was some warranty stuff when it was new.