2010 Equinox. 4 cylinder DI. Using Schaeffer 7000, and an AC PF457 cartridge.
Changed the FF at 500 miles.
Running this to 3000, then a switch to Schaeffer 9000. I'll watch the OLM, but already know I wont have the courage to follow it. I don't trust the DI motor yet for fuel dilution.
BTW... The first tank of fuel in mixed driving, 60% highway, 40% in town, 28.2 MPG in eco mode.