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DEI 40206 Radiator Relief Heater Hotter Engine Warm-Up Additive - 16oz

$9.97

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DEI 40206 Radiator Relief Heater Hotter Engine Warm-Up Additive - 16oz

$9.97

$9.97

DEI Radiator Relief Heater Hotter (MPN 40206) is a specialized chemical additive formulated to accelerate heat transfer from the engine to the antifreeze. By improving thermal efficiency in cold climates, this treatment allows the vehicle's HVAC system to reach operating temperature up to 50% faster, providing quicker window defrosting and interior warmth even in sub-zero conditions.

  • Reduces engine warm-up time by up to 50%
  • Accelerates window defrosting and ice melting for less scraping
  • Compatible with all types of antifreeze and aluminum radiators
  • Helps reduce cold-start engine wear by reaching operating temperatures sooner
  • Performance remains stable and will not dissipate over time

For installation, pour the 16oz bottle directly into the radiator. The solution must cycle and mix thoroughly with the existing coolant before becoming fully effective. Note that the vehicle's cooling system and thermostat must be in proper working order for Heater Hotter to function as intended.

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