Agree with both Tins and Shack.
I've had two friends with the ZD30 motor, and while they are powerful, they are a bit less refined than the TD5 can be made to be.
Patrol should have larger tank, but a (well sorted)TD5 should be more economical. This can be an important factor if you main criteria is 'overlanding'.
Before bro bought the TD5(which is kind'a both mine and his), he had a Patrol(4.8lt) .. like Tins said, truck like. Brother liked it enough, till it blew it's head gasket! .. and at the time I had my D1Tdi.
Driving each one, one after the other ... D1 was far more refined both on and off the road.
So, once he got rid of the Patrol, he found a cheapish D2 TD5. IMO, previous owner didn't really know what they were doing when it came to mods/repairs, and a lot of stupid stuff done to it, and as an example of this was the monumental failure they(someone) had performed on the heater box. This isn't something easily seen, as it's obviously all under the dash. I only found it all out doing my usual "I'm bored and I feel like stripping stuff off to check stuff out times".
Pulled dash fascia off to tighten up screws, and insulate plastics on plastics to stop rattles and creaks, and noticed bits of black plastic around the vent ducts. What someone had done was to totally annihilate the heater box, so that all air vented out through smashed up holes behind the dashboard, instead of correctly venting out the vents ... which explained the really weak air flow out the vents.
That little tidbit is just one example of how unknowledgeable types can ruin stuff very easily, get tired of the problems they created and then offload to unsuspecting enthusiast types(eg. me!) My bro isn't really an enthusiast type, where he will pull somethign apart even though it's 'working'. But the point remains .. people buy LR stuff because it seems cheap in some way(eg. 99 Patrol cost about $15-20K ... 99 TD5 D2 cost roughly $5K). But people cheap out in sorting out the previously mutilated LR vehicle, and get tired of 'wasting money' on it any more .. offloading to the next unsuspecting person.
Once you fix the idiotic stuff up, my experience is that LR vehicles are no less, or more reliable than other stuff.
OH! and I hope this post doesn't in some way imply that I'm some sort of professional/expert/guru either ... totally and completely not!
I've totally stuffed up my D1 a couple of times in critical ways, but it's durable enough to have shrugged it off and still no issue many years and klms later. I've stuffed up coolant repairs, and really seriously both cam belt changes I'd done on the TDi. But I caught it early enough that I didn't total the engine.
Quick rundown of stuff that could cost you $s not long after you find a 'good deal' D2 of some kind ... assuming you're after a TD5
Balljoints, wheel bearings, fuel pressure regulator, fuel pump, as Tins noted! .. front drivehshaft cardan joint ... harmonic balancer(on TD5).
Almost all of the electrical/electronic components can be traced via the nanocom, and if you skimmed Tins' comment on this ... you'd have to allow for the purchase of one if you get a TD5. From experience, tracing electronic gremlins(like ABS or crank sensor, and stuff) is near impossible without one .. or will cost you at an experienced mechanics shop ... either way the cost of the nanocom will almost certainly be seen back at the first instance of "3 amigos" .. or something.
And as already said, nowhere to use a HLJ on a D2, unless you go with a front, and or, rear bar that will take one. Then you have the next issue, that if you fit long travel suspension of some type(nice to have! [thumbsupbig]) the HLJ points on these bars then becomes totally ineffective, as it doesn't lift the tyres off the ground! [bigrolf](no need to guess how I know this) .. So again not so smart mods, should be taken into consideration. In fact if you are dead set on having a HLJ, I reckon I personally know someone that is keen to get rid of one! [biggrin]
I have to say here too tho, Patrol is also a good vehicle. No reason it couldn't be made to be as refined as the LR, just my experience of them is out the box, they're no where near it.
The major advantage factor for the Patrol is that parts/accessories/mods are much easier to locate than any LR will be.

