Motorcraft oil seems to be the only OEM type oil that gets any discussion on here. I wonder how many people are using this Ford oil in vehicles from other manufacturers. Do other car companies approve Motorcraft oils? Last time I checked it was not approved for use in GM vehicles (big surprise!!). Does anyone use it in a GM engine anyway? I have been using it in my '08 F150 5.4l and really like it, but I've only put 8k on it so far.