Well i averaged out between my Cinq (boo hissss) and my Clio (boo hiss but YAY it works!) and came up with twice a month. However the car washing part of my brain is going into hibernation until February because most of cornwall is just mud and cow pat. *poooo-eee*
Had a Cinq, bought a new Clio, so now I don't have a Cinq.