2006-2009 Range Rover MkIII / L322
Just changed my oil the other day after 4500 miles and about a year. I decided to use this oil, not because it says it says it's good for 20,000 miles, but because Castrol 5W-30 is the recommended oil for my vehicle. Wow. I don't remember being impressed with an oil before, but with this one I am. My engine is so quiet! I don't believe I've ever noticed that before after an oil change. Of course, I will change it in a year again after 4500 miles or so, but I'm impressed for once. It seems to be one of the better oils I've ever used. I'm not endorsing it, just telling my story.