Got this reply from a tuner about egts from tuning. Opinions needed.

[Sir Roofy]

well just drove to the doctors about 15 k using the lower ratio on the auto
cruising on 60,70 and 80 egts were 200c they went up under throttle and settled back very fast
Its about 30 degrees ATM in Melb

yea mine was about the same (manual) went to Warragul about 20ks and back
at Yarragon there is a slight rise from the lights to near united temp went to 290
or a tad more then settled back to 220 on the run home

[threedogs]

going by your results seems it works on RPM
and not KPH like most have done. that being the case
how many RPM at 100KPH for a manual 3 ltr DI,
please give tyres as either 265s or 285s

[Hodge]

I forgot to get back on this topic. @ 100km/ph flat roat, cruising, my RPM is 2350-2400. 5th gear.