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Cool change?

I USE water in my XF Falcon ute as the coolant, but should I use proper coolant? It has done 380,000km.

THE XF Falcon ute has an alloy-headed engine, so it should run a coolant rather than water. But I'd be reluctant to recommend you change now. After 380,000km, it seems to be going OK. I wouldn't change anything.

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