Gear changing was bad - worse after oil and filter change

[sssam]

Ok, update with good news! Thanks for the above advice. I did go back to my mechanic and asked if he wouldn't mind double checking the oil level as I'd heard (thanks to you guys) that the level may settle after being driven. Sure enough, they got another 2.5L in there! Now drives at least as well as ever while in my possession so very pleased I persevered. Driving it home was such a joy, but I'd reached the conclusion while it was ailing that it really didn't make sense to keep it.... Especially so given changed work circumstances requiring more mileage and I can't really justify a third car in our household of two just for occasional use....