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On the Prestone Dexacool bottle, Prestone advertized their coolant got Volvo certification something like that. If I need to flush coolant with a green colored one in my local town, I just need to pay arount $30 which is cheaper that changing synthetic Mobil oil ($43). But, I need to pay around $90 for Dexacool flush, and the shop guy told me your engine runs 10 degree lower.
By the way, can anyone tell me a simple way to flush coolant. Why I can't find a radiator coolant filler cap ? Do I need to put antifreeze into the plastic coolant resevoir cap? Thanks.
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