I use the ford cetane, because I get it cheep. Like $4 a bottle, but is do find a drop in mileage when I don't use it. The DPF cleaning does not seam as much too.
I've been using the Power Service and notice the same power/mpg thing.
As far as tuners go (?).. For now.. I don't think I need to do anything to this 012.. It has all the power'n performance I need & want. JMO but.. Ford did some Good R&D'n with this 6.7 PSD/6 speed Auto Trans set-up.
I'm with you Joe...this thing really just moves and pulls VERY well. after the constant tweaking i was doing on my other one...its kinda nice to JUST drive this one...
