@ iLLDuDe786 Agreed that No Engine Oil will pass 5000km behind. Else it is fully synthetic , semi synthetic just fulfill single long drive of yours. Due to unpaved /dusty roads as well climate too. for example Islamabad Quetta Via Zhob route need Engine Oil charge on each Return.thrice time we travel on that route each and every time we drain the Engine Oil, we found its totally color changed (black) Mechanic said Sir Jee all this due to Dusty roads.