Just want to say to all the naysayer's that if your Delica is tuned properly and your brakes are not grabbing/bearings are good/driveline is smooth, etc... that these pigs are pretty good at highway speeds.
It never kicked down to 3rd not even once going up the hills.
Vancouver to Seattle to Port Angeles and back.
With GPS calculated my highway speed/mpg.
***EDITED*** 128 kh/hr NOT 138 km/hr @ 2,970

Was able to cruise at 2,970 RPM @ 128 km/hr and still had room to accelerate (almost couldn't believe it when she read me the data).
Averaged 120-125 km/h driving back up last night with oncoming wind gusts and hit 112 km/h at the lowest highway cruising speed.
This is by far the best tuned 2.5 I've driven (Thanks Edwin/Butch @ CVI)

High roof, auto, 4.875 gearing, 31 " AT tires.
Jesse
ps. I hate driving on the I-5.