Thanks for all the help guys. My SIL and I got the oil changed this morning. Them dang Brits don't make it easy. Had to remove a very large skid pan from the bottom of the engine bay. Can't figure why they go to all the trouble to put a skid pan on it and have the bottom of the skid pan made out of plastic. But we got her done. Used Landrover filter, and Mobil 1 0w-40. Of all the oils listed in the Landrover manual, the M-1 and Castrol were the only ones I could find.
The Rover now has 18k miles on it, it drives well, sounds good, and looks good. One concern I have, was the amount of varnish/sludge on the inside of the oil cap. What I would consider a bunch, with visible build up. This was also found on the inside of the engine, (I gave it the finger test) real build up on my finger.
Question is: Should we be concerned about this? Presently the car is driven about 10 to 15 miles a day, all of it, I would consider intown/stop-n-go. The plan is to change the oil sometime in late January and do a RX cleanup on the engine.
As far as I know the car has used, the 12k mile service as recommended by Landrover and has been service at a Landrover facility. The sludge/varnish found in this engine does not impress me. What I recommended to the SIL is changing the oil/filter more often, no more than 5k or 6 months, which at the rate the miles are put on this car, the oil will be changed at 6 month intervals with about 2 to 3k on it. Do you guys think this is okay?
Once again thanks for the information, advice and help.