just had the oil changed ird diff and i thought gearbox(auto) but got a phone call they said that they had phoned land rover in salisbury they said dont touch it could end up with all sorts of probs so the garage declined to do the box that is no 5 that wont touch it so i phoned land rover meself and shore enough told me the same also said that the oil stays in for the life of the box but as most of you no haynes say change it every 60000 miles whos right land rover or haynes