This has probably been discussed already but I could not find the specific answer I was looking for. 
I have done my 6k service in July and the dealer told me (after the service not before
) that I need to go back and change the gearbox oil when the bike is 12 months old.
Now, in July the bike was 10 months old so what's the point of going back after only 2 months only 2k miles later? Had they told me earlier of course I would have asked for a gearbox oil change as well.
What shall I do?
Would this invalidate warranty if I don't do it?

I have done my 6k service in July and the dealer told me (after the service not before
) that I need to go back and change the gearbox oil when the bike is 12 months old.Now, in July the bike was 10 months old so what's the point of going back after only 2 months only 2k miles later? Had they told me earlier of course I would have asked for a gearbox oil change as well.
What shall I do?
Would this invalidate warranty if I don't do it?

