10 bestCoolant Additivesof July 2025
112M consumers helped this year.
1
Red Line 80204 Water Wetter -12oz. 2 Bottles
Red Line
9.9
2
Zerex Asian Vehicle Blue Silicate and Borate Free 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA
Zerex
9.8
16% off
3
Engine Ice TYDS008 High Performance Coolant - 0.5 Gallon
Engine Ice
9.6
6% off
4
Prestone AF2000 Extended Life Antifreeze - 1 Gallon
Prestone
9.4
42% off
5
Zerex 675130 Asian Vehicle Anitfreeze/Coolant - Gallon
Zerex
9.2
OtherUp to 5% off
Liqui Moly Radiator Stop Leak | 250 ml | Cooler additive | SKU: 20132
Zerex Original Green Antifreeze/Coolant - 1 Gallon
Red Line 80205, Supercool Extreme Powersports Coolant, Safe for Track, Street, Off-Roa - 1/2 Gallon (64 Ounces)
Land Rover Genuine OEM Orange Coolant
6
Zerex ZXELRU1 DEX-Cool Antifreeze/Coolant - Gallon
Valvoline
8.9
14% off
7
Prestone AF850 Dex-Cool 50/50 Antifreeze - 1 Gallon
Prestone
8.7
8
Royal Purple 01600 Purple Ice Super-Coolant Radiator Additive, 12-Ounce
Royal Purple
8.4
9
Engine Ice Hi Performance SXS/ATV Anti-Freeze Coolant 1/2 Gallon (12556)
Engine Ice
8.2
9% off
10
Zerex 875537 G-48 Antifreeze Coolant, Blue, 50/50 (Pre-diluted) 4 x 3.78L, 4 (Non-Carb Compliant)
Zerex
7.9
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