Hi again! Forgot to mention that I've got a very small oil leak that seems to occur when I start the engine after it has not been started for 12+ hours. It is only a drop or two and I've been told that it is 'air sealed' which might explain it???

Is this something worth investigating? There seems to be a reasonable amount of oil dripping down onto the axle, which has come from fairly far towards the front of the engine, but I've no idea over how long this has been happening.

The oil level is fine.

cheers!