Turns out engine coolant is green. Thanks daysgoneby  and imaginaryfriend 

Background: I recently got my car serviced for the first time in years (yes, yes I know) and didn't realise that they'd put coolant in.

Now who would have guessed that I used to race cars, granted they were Electric and Solar. Still every other driver had some idea about how cars actually worked. Me I just drove really fast.

Vrooom Vrooom

Silly Blue