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? asked in Cars & TransportationMaintenance & Repairs · 2 months ago

Top off coolant in radiator?

Is the antifreeze/coolant supposed to fill up all the way to the top in the radiator while cool? The reservoir has a "min max" mark but there's no indicator for the radiator. 

Also, there was red coolant in the reservoir but the coolant I got was green/yellowish. It says mixes with any coolant for all cars so it should be safe right?

Thanks in advance.

Update:

Btw I did my first drain and fill yesterday and temperature hasn't gone past 80° C so I think it's keeping the engine at normal temp

1 Answer

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  • Barkley Hound
    Lv 7
    2 months ago
    Favourite answer

    The radiator should to full when cold and the reservoir at min. When the engine is hot the reservoir will rise to max.

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