i can understand different rpms in tjet. but what about the fire engines? do they hover around 3k rpm at 100, like my car? just want to confirm that.[/quote:2amxzbft] While i cant answer wrt. to fire 1.4; With a Tjet, the rpm is linked to the gear you are in, 4th. gear at 100 kmph will give a higher rpm, than 5th. gear at this speed. Normally, at 100kmph, which gear do you drive in? Ideally, it should be the 5th. gear.