15W/40. XR6T takes 7.5lt (non turbo 7lt). GTX3 and Shell Helix Super are two oils that I know of that meet the grade. I think Castrol is what they use from factory (my car has a Castrol sticker on the window saying when the next service is due).
You know, somebody actually complimented me on my driving today. They left a little note on the windscreen. It said, 'Parking Fine.'So that was nice.