:embarassed: hi people i have went from the mk5 1.4 golf to the mk4 gti (150) and have noticed a difference in the engine temp gauge when i drive around the doors wen warm sits at normal temperature but when a go on a duel carriageway and drive at 70mph the temperature drops to around the next mark down is this normal

? just my old golf never did this. any help will be much appreciated............. thanks