7th pic down right hand side of the bay u see the diet coke 'with a twist of lemon' bottle

Basically a few drips sometimes come out of the uprated Bailey style breathers and your suppose to let it just drip on the floor. but probably like me the owner didn't want oil on the drive or splatered all over engine bay by the driveshafts. So by sticking a bottle on the end to catch any drips