Anti-Freeze, Coolant and Radiator Additives

Anti-Freeze, Coolant and Radiator AdditivesAt Autobarn we provide a wide variety of radiator additives that can provide rust protection, better lubrication, or even lowering coolant temperatures. Check out our radiator additives by Kool-It, Pentofrost, Royal Purple, Red Line, Gunk, and Tow Kool.
Blue Devil Radiator Flush - (32oz.)
Blue Devil Engine Cool (16 oz)
Kool It® Radiator Flush (16 oz.)
Kool-It Engine Coolant Treatment (16 oz.)
Extends vehicle's life & performance
Our Price: $7.99
Guaranteed to reduce the engine operating temperature up to 25° F
Our Price: $11.95
Removes scum, oily residue, sediments, rust, deposits, etc. from your cooling system
Our Price: $7.99
Cools engines 5-10 degrees (F) when used with antifreeze, and 15-25 degrees (F) when used with straight water
Our Price: $8.99
Kool-It Evaporator and Heater Core Foam Cleaner (6 oz)
Pentofrost A1 Anti-Freeze/Coolant (1 Gal)
Pentofrost E Phosphate-Free Anti-Freeze/Coolant Concentrate (1.5 Liters)
Pentofrost E Phosphate-Free Anti-Freeze/Coolant Concentrate (5 Liters)
Removes and neutralizes harmful contaminants that thrive in air conditioning and heating systems
Our Price: $11.95
Our Price: $33.95
Our Price: $14.95, 2/$28.30
Our Price: $47.95
Pentofrost NF Longtime Anti-Freeze/Coolant For Aluminum Engines (1.5 L)
Pentofrost SF Lifetime Anti-Freeze/Coolant For Aluminum Engines (1.5 L)
Royal Purple Purple Ice Radiator Super Coolant (12 oz.)
Redline Water Wetter (12 oz)
Our Price: $13.95, 2/$26.50
Our Price: $16.95
Sale Price: $15.95, 2/$30.30
You Save: $1.00
Our Price: $15.99
Sale Price: $13.99
You Save: $2.00
Our Price: $12.95
Sale Price: $11.95
You Save: $1.00
  • "Auto Barn.net was the only vendor who stocked all the products I needed at the best price and fastest free shipping." (5/23/18)

    -
  • "Very easy to find what I wanted" (5/23/18)

    -
  • "Very competitive pricing and free shipping is a great combination." (5/22/18)

    -
  • "I always find that your products are of good quality." (5/12/18)

    -
Read All Testimonials