Re: best oil to use in my 6.o?
I have been running the amsoil 15-40 and 5w-40 for 100K.. and have had no issue. Also running the oil bypass filter which does a great job at keeping the oil cleaner. It is a bit more then the T6 but if you order as a perfered customer from thier site.. it is shipped to your door, saving the time to go shopping and arrives (for me) next day.
2005 F250 Harley CC SB Banks IQ, 4" Exhaust, Banks Techi Cooler with High Ram, Cold Air Intake, Cat Delete,EGR Delete,Coolant Filter,Amsoil Oil Filter Bypass, PHP ECM Rollback, PHP FICM Tuner, WW2,Rancho 9000XL shocks. Firestone Air Springs w/Daystar Cradles. 224K