Home Forums Gear Hunting Trucks and Four-Wheel Drives when to change your oil

In my cars I change every 10k. In my Dodge Stratus I use diesel motor oil. Has a bit more additives. In my Saturn I have 12 and should change it soo I guess. In my GMC Diesel Duramax I went with what the computer says and it went 9,990 mi. I changed it in 10,500. The time before it went 12k. Before that I went 25k on Amsoil with one filter change. Before that I went with Amsoil with 15 k filter changes and an oil test every 20k. I changed at 39k. Before that I went 46k with Amsoil. The motor runs so darn good I swear it runs better every year.