That's exactly what I was thinking but didn't know by how much, I thought 10mm would be enough for the back lol.
Ye I've been looking for leaks but found none. I've been driving it alot recently so ill check the water level when it cools down to see how much I've lost. Also have you heard or tried using K Seal?
I had a 140 before and this was my first time in a 190 so I was blown away. After doing 0 to 60 mph test though I realised something was fishy. I just blamed the extra speed on the custom exhaust and my super professional gear changing (not really, I was lying to myself)
Everything went well Ian, you can understand my relief of reaching home after travelling 6 hours on the coach followed by 230 miles on a new car which may have a hidden problem, my paranoia was all over the place. One single weird noise and my heart would sink. But nothing of that sort happened and I got myself a beauty.