Automotive

    The Best Rated Cooling System Additives

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    1
    Royal Purple 01600 Purple Ice Super-Coolant Radiator Additive, 12-Ounce
    ✓ Best choice
    Royal Purple 01600 Purple Ice Super-Coolant Radiator Additive, 12-Ounce
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    9.4
    2
    Bar's Leaks 1150-4PK Cooling System Repair - 16.9 oz., (Pack of 4)
    Recommended
    Bar's Leaks 1150-4PK Cooling System Repair - 16.9 oz., (Pack of 4)
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    9.2
    3
    Liqui Moly 2051 Radiator Cleaner - 300 ml
    Liqui Moly 2051 Radiator Cleaner - 300 ml
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    8.6
    4
    PrimoChill System Reboot - Cooling Loop Treatment
    PrimoChill System Reboot - Cooling Loop Treatment
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    8
    5
    Red Line 80204 Water Wetter -12oz. 2 Bottles
    Red Line 80204 Water Wetter -12oz. 2 Bottles
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    7.7
    6
    Rislone 34700-4PK Gasoline Fuel System Treatment, Pack of 4, 500mL 4 Pack
    Rislone 34700-4PK Gasoline Fuel System Treatment, Pack of 4, 500mL 4 Pack
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    7.4
    7
    CORSAIR Hydro X Series, XL8, Performance Coolant, 1L
    CORSAIR Hydro X Series, XL8, Performance Coolant, 1L
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    7.3
    8
    Rislone 31150-4PK High Mileage Cooling System Repair, Pack of 4, 500mL
    Rislone 31150-4PK High Mileage Cooling System Repair, Pack of 4, 500mL
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    7.3
    9
    K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair
    K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair
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    7.2
    10
    Prestone AS105 Radiator Flush and Cleaner - 22 oz.
    Prestone AS105 Radiator Flush and Cleaner - 22 oz.
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    7.1
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