Thanks guys - everything said makes sense.
FWIW, a "double flush" I mentioned earlier is not really inferring flushing fluid through the box. It's just a fill - drive for 1000km - and then drain and fill again. (The first change ends up mixing old ATF from cooler lines/torque convertor, the second freshens it up some more). I've just looked up a guide on changing the ATF in these and will just follow that one - and change it every 100,000km.
Cheers,
Rob
Bookmarks