HomeAll RepliesReply To: type of motor oil that should be use on the Nox/Terrain with 3.0 V6 Reply To: type of motor oil that should be use on the Nox/Terrain with 3.0 V6 Sponsored February 12, 2014 at 11:12 pm #53592 Vic1212Participant I just wasn’t sure about it because like I said before the 4.6 Northstar found on the cadillacs mostly uses the Mobil 1 synthetic.. Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored