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Re: Poor heater performance (aftermarket coolant problem?)
Posted to HVAC Forum on 9/2/2017 1 Reply

Tyrell,

You have to remember that the water (so-calls) picks up the heat, not the actual "antifreeze"/coolant; so, plain water will become higher in temperature than a mixture of water-coolant.

With that said, concentrate on the vehicle problem: check the ... Login to read more.

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