fair enough but i guess the trick is not let it get that low in the first place! I check mine every few weeks, it uses a bit but after 11 years and 85k I'm ok with that.... Well I don't doubt that works, but at a service stop at night, in the rain on the motorway it does really prove the point that someone in the TA engine design department should be FIRED. (and in apprentice speak not 'with regret')