How do you keep the GU's 5sp shifting smooth as butter?

[mudski]

Thanks for the advice guys. I plan to have Nissan look into this when they service the ute (TD42) tomorrow.

Is it a stock TD? Mine runs with around 650nm, the first time I went away towing the camper I was pretty much on the go pedal in 5th and pushing it up hills etc etc and I found that when I came into a town and had to slow down I found it real difficult to change up gears. Turns out I had cooked the gear oil from too much load, eg flogging it up hills, a lot, with the camper in tow. After I changed the oil and changed my driving style all is good.

FWIW, don't bother taking it to Ni$$an for this. They'll just change the oil or tell you that a new gearbox is on the cards.