Hey guys im looking at upgrading my daliy and im looking at an NF/NL just have a few questions as im into the I6's alot

how well do they run on gas, what sort of L per 100km
is their anythink i should be looking for when buying one

If this is not too late, the V8 run well on gas my NF 5.0 runs sweet although they do lack some power unless you could find someone to install a LPG injection set up on it. I got about 300 kms from a tank of gas when auto now I can get near 350 kms with the 5 speed manual! No idea what that is in l/100kms as I dont really care too much!
They suffer the same problems as Falcons with rust etc but they are usually better looked after , esp early in their lives.
The only problem that is more common is the rear self levelling suspension which is prone to fail but easily remedied by replacing rear springs and shocks.