GU - 3.0 Vs 4.2 Diesel

[luxo barge]

The 4.2' s can be modded to produce a lot more power than the 3.0 L. For this reason they are prefered for more extreme offroad/ comp situations and also to heavy heavy towing. They also hold their value longer and will not depreciate as quickly as a 3.0L, and thayey sound awesomly tough with the right exhaust and mods.
The 3.0 Di up to series II 2002 where considered to be a bit of a hand grenade but few would be left with problems these days. To be on the safe side series III's are prefered over the series II for that reason, as Nissan had sorted the problems by then, But some mods are still prefered to be performed just to be on the safe side, like blocking the EGR and regular cleaning of the MAF sensor [think of these things as preventive matainence]
The shape of the Patrol changed very late in 2004 now a series IV with flattened flares made as part of the body, as opposed to the more tacked on plastic look type on the series III. The dash also changed but the 3.0Di remained till it was changed over to CRD in 2007.

If your're into the tough stuff and very heavy towing, and got the $'s to spend to make a super toughttruck that will annoy the neibours with black smoke and turbo whistle, go the 4.2, but it'll cot more to buy than a 3.0L.

If the above is not too much of a concern then go the 3.0L and if you want more power, just chip it. The CRD's,.. well some have had drama's with bad fuel economy and others have not. The pick of the bunch in the 3.0L feild would then be the 3.0 Di series IV [2005 - 2006 ] with the revised body and dash just before the CRD of 2007.

So there goes... I 've done me researh, now I just got to get my hands on a Patrol. Anyone want to give me one... ? I'd like a 05-06 series IV 3.0 ST-L with a manual box and grey leather.... Thanks.

I'll even give you my 1993 DC Hilux with all the ARB fruit, [Air lockers ect]