Atlantic British Ltd. - Largest Independent Supplier of Parts & Accessories for Land Rovers

Pop the hood and look for oil leaks around your valve covers periodically. If you see any seepage (discern any discharge?), you probably have excessive carbon build-up in your PCV system that's causing undue pressure on your seals. It's a simple job to replace them and should be done sooner, rather than later.

PCV Kits:

Range Rover Classic, Discovery I and Defender 90 - item# 9205

Discovery Series II, Range Rover 4.0 and 4.6 with Bosch engines - item# 9205B

Discovery Series II, Range Rover 4.0 and 4.6 with Gems engines - item# 9205G