Just got out a meeting with the MD from Draper and I'm pleased to be able to offer you guys an exhaust gas leak kit. This is a clever kit that can easily diagnose early signs of head gasket failure, cracked block, warped head etc. Simply push this unit ontoyou radiator with the cap off and run your car. If any CO2 is present in the cooling system the detector fluid will turn from blue to yellow. Handy piece of kit.

Nice thing to have for early detection of head gasket failure to prevent excessive engine wear.
DW price 60 delivered