Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Muscle Car Accessories & Fluids At Speedway Motors

Let Speedway Motors keep your muscle car in excellent condition with a variety of cleaning and appearance products. From brands like AERO Appearance Products and Lucas Oil, you are sure to make your muscle car look its finest. Speedway also offers top of the line oil, lubricants, and grease for any application. So to keep your muscle car maintained at show room condition and while leaving the competition in the dust!

"Muscle Car, Engine Coolant Additives" Page 1 of 1

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  • DEi 040200 Radiator Relief    Coolant Additive, 16 oz. Bottle
    DEi 040200 Radiator Relief Coolant Additive, 16 oz. Bottle
    (Part #35640200)
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    Radiator Relief™ supercharges your radiator by transferring heat more efficiently through the radiator. Similar to the original formula this proven coolant additive will reduce your operating temperature up to 30°F reducing engine wear that occurs during extreme use.

    Radiator Relief™ is also formulated with a corrosion inhibitor that reduces mineral deposits. This is the first additive that maintains pH levels that otherwise fluctuate over time resulting in core damage.

    • Reduces engine temperature up to 30˚F
    • Includes anti-foaming agent
    • Formulated with a corrosion inhibitor
    • No mixing required; just add to cooling system!
    • Reduces pre-existing scale build-up
    • Safe with all alloys
    • Compatible with water and all types of anti-freeze products
    • 100% Biodegradable, Non-Corrosive and Non-Toxic Additive
    • For use in all water cooled engines

    Radiator Relief Frequently Asked Questions (PDF)

    Learn more about how cooling systems work with proper coolant mixture and additives by reading our tech article. Cooling System Principles.  

  • Lucas 10640 Super Coolant Additive
    Lucas 10640 Super Coolant Additive
    (Part #484106401)
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    Lucas Super Coolant has been scientifically formulated to provide the ultimate protection in automotive and racing cooling systems. It protects the entire system from rust, corrosion and electrolysis including aluminum.

    Our unique coolant additive formula prevents deposits that can cause overheating, and has been proven to reduce coolant temperatures up to 20°F.
    Lower cylinder head temperatures means advanced ignition and more horsepower.

    • Lower cylinder head temps
    • Allow advanced ignition, timing and more horsepower
    • Reduce operating temperatures by up to 20°
    • Prevents corrosion, electrolytes and deposits that cause leaks, overheating, and cooling system failures

    Learn more about how cooling systems work with proper coolant mixture and additives by reading our tech article. Cooling System Principles.  

    484106401 Super Coolant Safety Data Sheet (PDF)

    484106401 Super Coolant Technical Data Sheet (PDF)

  • Pro-Blend 4032 40-Below Engine Coolant Additive, 30 Oz.
    Pro-Blend 4032 40-Below Engine Coolant Additive, 30 Oz.
    (Part #91016003)
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    Reduces coolant temps up to 40° F. Prevents coolant temperature from rising excessively under extreme racing conditions. 30 oz. Use a 80% water and 20% Pro-Blend 40 Below mix.

    NOTE: Do NOT use with propylene glycol antifreeze, stop leak, or block sealer. Can be used with distilled water and ethylene glycol antifreeze.

    Learn more about how cooling systems work with proper coolant mixture and additives by reading our tech article. Cooling System Principles.   

  • Red Line 80204 Water Wetter Coolant Additive
    Red Line 80204 Water Wetter Coolant Additive
    (Part #91015709)
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                Please view the product's page for more information
            
  • Pro-Blend 8012 Engine Cool Oil Additive, 11.5 Oz. Bottle
    Pro-Blend 8012 Engine Cool Oil Additive, 11.5 Oz. Bottle
    (Part #91016001)
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    This amazing oil additive can reduce oil temps by up to 57° and coolant temperature up to 7°. By reducing friction in an engine you also reduce the operating temperature. This has proven to double the engine life and also increase fuel mileage. Engine cool is compatible with regular and synthetic oils and unlike other "snake oils" contains no teflon, moly or silicone.

    Add one bottle per oil change. 

    11-1/2" oz bottle.

  • Moroso 35500 Ceramic Engine Seal - 1 Pint
    Moroso 35500 Ceramic Engine Seal - 1 Pint
    (Part #54535500)
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    Moroso ceramic engine seal coats and seals radiators and cooling systems. Seals minor cracks in engine head and block.

    • The best Chemical Sealer you can buy to stop cooling system leaks
    • Works equally well in aluminum or cast iron blocks
    • Cooling system must be thoroughly clean before use
    • Does not work with antifreeze
    • If this doesn't stop the leaks, find yourself a welder!
  • Lucas 10640 Super Coolant Additive, Case of 12 Bottles
    Lucas 10640 Super Coolant Additive, Case of 12 Bottles
    (Part #48410640)
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                Please view the product's page for more information
            
  • C&R Radiators 1000000001 Radiator Stop Leak, Coolant Additive
    C&R Radiators 1000000001 Radiator Stop Leak, Coolant Additive
    (Part #9104120)
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    This coolant stop leak is the best we have found and can be flushed out when needed. 

    Learn more about how cooling systems work with proper coolant mixture and additives by reading our tech article. Cooling System Principles.   

  • AFCO 100002 High Performance Coolant Additive - 16 oz.
    AFCO 100002 High Performance Coolant Additive - 16 oz.
    (Part #106100002)
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    AFCO's specially formulated High Performance Coolant Additive is race tested and proven to lower operating temperatures. It is safe for hoses and water pump seals as well as protect against rust, corrosion, and foaming. Lasts up to 12 months.
    • Specially formulated
    • Race tested and proven
    • Lowers operating temperatures
    • Protects against rust, corrosion, and foaming
    • Safe for hoses and water pump seals
    • Lasts for up to 12 months

    Learn more about how cooling systems work and proper coolant mixture by reading our tech article. Cooling System Principles.