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Old 06-24-2011, 06:35 PM   #25 (permalink)
slowmover
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Location: Fort Worth, Texas
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2004 CTD - '04 DODGE RAM 2500 SLT
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There was a similar item sold through the late 1980's (prior to the advent of FI) where the radiator temps would spike on hill-climbs for tow vehicles [RV's]. Severe heat spike. It used a windshield washer pump, that reservoir made common (and/or enlarged) and distilled water recommended (for reasons above: corrosion and mineral build). IIRC it was four spray heads mounted so as to cover the entirety of the first heat exchanger (generally the A/C condenser).

By report this worked best -- the temporary increase in surface area -- in dry, hot, higher altitude climbs.

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