I've always been a big fan of Mobil 1. Use it in all of my vehicles.
About 10 years ago, I had a Jag XJS, and blew the engine because the oil level dropped a lot after putting in Mobil 1. (I should have paid better attention to the level.)
Since british vehicles are known for marking their spot, is the newish range rovers likely to leak more after putting in Mobil 1, or has the formulation of the oil changed that it is less likely? (It appears that rangies still tend to leak a bit.)
not trying to start an oil thread, just looking for other's experiences ...