Land Rover Range Rover OE Engine Coolant - autozone Order Land Rover Range Rover OE Engine Coolant online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store. What Coolant Goes Into My Land Rover? - roverparts Now up until the early 90s pretty much everything used ethylene glycol, the old green coolant but just the environment and everything else, everybody thought they should be going more green, so Land Rover in the early 90s, starting with the Defender and the Disco 1 and the P38 Range Rover, they went to XLC, which is an orange colored anti-freeze, comes in a bottle looks like so.