Took my missus to Brands Hatch yesterday and all was peachy. Doing a steady 90 round the M25 I noticed my water temp was reading 60Â°C. I eased right back to 50 and the temp rose again to read the normal 90Â°C. Wound it back up again and after a while the needle dropped back to 60Â°C again. Once in the 50 zone the temp stayed perfectly normal. Am I likely to have a problem or is the air pasing through the rad THAt cooling??