Coolant alarm going off on roundabout

[cobbdu1]

That's really useful. Thank you.

The Bongo was only purchased in February and it was as an import, so that should explain why it has green coolant.

I was wondering why I shouldn't just add some new green coolant, but having had a little Google search I gather that the one thing you really mustn't do is mix coolants and that the only way you can guarantee this is buy flushing out the system and replacing with a known coolant/colour.

Is this why you are suggesting to top up with some water rather than some newly bought green coolant?

[haydn callow]

Yes

[mikeonb4c]

I've always used (green) ethylene glycol antifreeze. Although it needs changing more often it strikes me as a simpler proposition and probably what my system was designed to have in it.

[Northern Bongolow]

The colour of the coolant isn't important, it's the chemical makeup, it needs to an OAT based coolant , these are specifically designed for these engines that contain dissimilar metals including the entire coolant system.

[mikeonb4c]

The colour of the coolant isn't important, it's the chemical makeup, it needs to an OAT based coolant , these are specifically designed for these engines that contain dissimilar metals including the entire coolant system.

I think colour might just be there to help identify type of coolant? As far as I can tell mine has had ethylene glycol coolant in it all its life. Certainly did when i bought it and so I've just stuck with that. If this post is to be believed, its what a 1995 Ford Ranger engine might have used.

https://www.justanswer.com/ford/4654v-f ... -ford.html