Well I've finally done it, I've joined the 1200km club.
On the i30 trip meter 1232km, on the scangauge 1226km.
I did this drive from Laverton (West of Melbourne, I'd also been driving already so the engine was warm), up to Newcastle (with some city driving in Newie aswell)
i30 trip computer: 4.6l/100km got 57.65l into the tank, and the DTE started flashing after I'd parked at the bowser before turning it off.
Average trip speed was 80km/h.
My route was Princes highway, Western Ring road, Hume Highway, Cumberland, F3, plus associated detours for rest stops/toilet breaks, and then various roads in the Newcastle region.
Highest speed driven at was 100km/h according to GPS and SG. (My P plate limit also) but there was quite alot of road work on the Hume that wrecked a bit of havoc, I think I lost a few kms doing that. I think I could have gotten 1250, maybe 1300km if things were perfect.
I think Thumpers intercooler cover would have come in handy as my temps were a bit low, I did Laverton to Albury Sunday evening and night. Outside temps were low double digits and IAT was high 20's, even on Monday most of my trip through country NSW during the day until late afternoon were seeing IAT at high 20's to 30's.
I don't think there's much else that I can improve. I was shifting between 2000 and 2500 (roughly) sometimes lower. Mimimal air con (normally only on down hill sections when fuel consumption was minimal ie well below the avg consumption.)
For this trip 2 people were in the car with associated luggage for a weeks holiday.
I think I've droned on for more than long enough.

Regards
Daniel