Rotella t6 every 5-7k ...all of my blackstone samples say I could prob go a lot longer. At 22k on it its had 3 oil changes and a new set of fuel filters....its mostly parked in the garage these days as i dont drive it as much so ill just go to once a year changes since I wont hit 7k ...i cant imagine even if I was clocking a lot of mileage I would ever go over 7 max....on the flip side I had an 88gmc that was my beater. ..it burned oil (quart a month)...just added oil...never changed it or the filter...it was still running good 8 yrs later when the block and tranny were swapped!!..lol..and that was on cheap ol walmart oil...
2015 F350 Platinum Fx4 6.7 Diesel Dually. B&W turnover, B&W Companion, air bags and wireless controller.
2015 Heartland Road Warrior 420 Rt
2012 f250 Fx4 6.7 Diesel crew cab tinted n tuned
2012 lacrosse 318bhs touring- sold