Engine lost coolant
I've had an intermittent coolant leak for a few months. (156 TS) It only seemed to show when the air con was used. Put it into a garage & they couldn't find it. "keep an eye on it...." The car isn't used often, but hasn't leaked of late. Took it out today, had to travel 11 rural miles. Nearing destination I noticed the temperature was up, then heard what sounded like pinking, the sound reflected by the hedgerows.
I'd lost a lot of water, had to keep filling up & starting the engine, sounded like it was boiling.
It looks like the radiatior is leaking, so I've bought some Barrs.
Should I just try the Barrs through it & run the engine, or not start it 'til it's checked?