Been talking with my old man and he just returned his company 06 Actros 1848 with 1300000 km on odometer.It had 80000 km OCI mostly with rimula r6.No problems whatsoever,original turbo etc. For replacement he got new IVECO Stralis HI WAY 500.What puzzles me is OCI on this one.It's 150000 km (93000 miles).Has engine and oil technology evolved this much in eight years?For sure it uses much less fuel then old Merc (31l/100km vs 36l/100km) and he sad it pulls better.Recommended oil for Stralis is Urania fe 5w30.