Not a fan of Mobile 1 myself. Had catistrophic engine failure in my last Audi S4 when using Mobile 1. Granted, I was running it very very hard, at a very high state of tune, but a series of small failures caused the demise of my powerplant. After dismanteling the entire engine I was surprised at how much sludge had developed in very curious places. I switched to Amsoil after rebuild and never looked back.
In the LR, I use dealer recommended Valvoline 10W40 (conventional motor oil). Not 100% sure why the choice was made on that particular brand but I haven't had any issues and I will have long since replaced this LR by the time the extended warranty expires. (need a larger vehicle :bawling: )