Originally Posted by 
Discovery-94
				
			 
			Got a D1 300tdi with 488k on it,.. And been taking it through the central desert country a good few times, including Anne beadell, connie Sue, great central, gun barrel, eagle hwy.
No expert by any means, but a few experiences I'd like to share...
Owned the disco for about 8 years now, and it is my daily drive, so I know the noises it makes under various circumstances, which is helpful in keeping an eye out for minor& major problems (like exhaust mounts coming loose)
Been maintaining it myself all the way to the clutch and cyl head, so I know what's been done and when.
one of the worst things to happen on a trip was to burst my oil cooler. My low coolant alarm had been going off for a fracture of a second every couple of days since coming off connie sue highway, which I put down to a tiny air bubble in the system, and since temp stayed ok I dint worry more than that. I then travelled up gcr to Alice and back. Finally found a heap of oil in my overflow tank when I was at Tjukajirla --- cleaned out the system, bypassed the oil cooler with some garden hose and slugged it back to Perth stopping every 100k or so... (The hose did split shortly before York, evacuating about 5 litres of oil :o but I was able to catch it due to the change in engine noise
...... And it all happened again 2 years later....
Cause:: 'cheap' as **** radiators. 
Make sure-sure that the oil cooler (which is integrated to the radiator) is NOT the plastic type.
Corrugations WILL kill it!!! :eek:
Another big thing which I believe gets overlooked easily are the heater hoses which run behind the cyl head. They cop a lot of heat so close to the engine and can rub against the head causing them to fail...
And they definitely don't like being overheated!!
Capability wise ....I always always always have this discussion with people driving 'fancier' 4x4s - and yes. For me fancy starts with electric Windows (btw they failed as well once, window stuck open until I swapped it with the switch from another window  ;)
4x4 capability is not mainly determined by the make/model of vehicle and its accessories but by the driver knowing how to use it.
drive safe and enjoy!!!