I'll second Phil's comments. Especially if you are running synthetic, you can go beyond 5000K. I've been alternating between Rotella-T (bought locally) and Amsoil (Cousin runs an oil change shop in Sask, so I get it cheap when I'm there.) I'm doing 7500K or so between changes. More often in the cold.


1991 Mitsubishi Pajero XP TD LWB family hauler.