Club 80-90 Forums

I believe I have used incorrect antifreeze in my 1900 water cooled engine, and mixed red with the original blue.
Is this catastrophic or can I get away with it for a couple of weeks at which time I will be having a recon engine in.

If it were me in your circumstances I would leave it as is. See what others say but for two weeks.......?

I would drain the system, pretty sure that mixing is a bad idea. You can run it with water in the system or use pink antifreeze and reuse this when you fit your recon engine.

Depends on the antifreeze, but most of the later red antifreeze's from G12+ are miscible with the green. Just turns a funny colour and is not ideal.

You're replacing the engine in a couple of weeks? Leave it - it's not worth the expense of yet more antifreeze