i have a 07 plate 120bhp multijet diesel,whats the best gearbox oil to use as i am away to drain and change my oil in my doblo,thanks choc

www.castrol.co.uk "oilfinder"
Castrol TAF-X is an excellent choice,( at least if it's available in the UK...)
Syntrans Multivehicle 75W90 is probably the best choice.