I have searched around on so many forums now and unable to find a definitive answer as I have heard rumours of vauxhall overfilling the F40 gearbox so I have heard it holds 2.4L, 2.6L, 1.9L, I dont have a clue how much is in thereor whether should be putting in less than what I get out because that what I have seen on a few forums. Would really appreciate some guidance on this!! All I do know is I will be using Redline 75W-85 GL04 oil for it... but how much of it??? ??