I think my Civic at 70-80mph used to be around 3.5 to 4k/rpm... That never had a gearbo change.
My cousin drove a Mazda and said that drank fuel at 4krpm too...
but those are just hunches mate. not entirely sure on diagnostics.
How do you tolerate 57mph on a motorway? Thats like, HGV speeds. You must sit inbetween all of them wondering when you're going to be crushed!! :P
I usually sit at around 80-90 on the motorway, 6th gear, then chill out. Was the same in the 1.4 Civic too, but in 5th, and a little more cautiously as it wasnt as solid....
