Oh I Forgot

On Saturday I went to get in my car and saw what looked like a wet patch under it. Dreading another leak I popped the bonnet and had a look. What do I see? The coolant filler-cap sitting quite happily next to the expansion tank. Who's a silly boy then? To think I managed to drive all the way from newbury to Aberystwyth without the cap on, and then drive around Aber for a week without the cap on... Strangely I still had half of the water in the tank. It's amazing I didn't run it dry.