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10 Best Coolant Leaks 2024 in the US

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Thorstone

Thorstone

Thorstone No Spill Coolant Funnel Kit, Spill Free Radiator Coolant Filling Funnel, Spill Proof Radiator Funnel Bleeder with Adapters, Automotive Antifreeze Bleeder for Universal Vehicles

#1

Winner

Valvoline

Valvoline

Valvoline Multi-Vehicle 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA, Light Yellow/Green.

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Thorstone

Thorstone

Thorstone No Spill Coolant Funnel Kit, Spill Free Radiator Coolant Filling Funnel, Spill Proof Radiator Funnel Bleeder with Adapters, Automotive Antifreeze Bleeder for Universal Vehicles

#2
K-Seal ST5

K-Seal

K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

#3
BILITOOLS

BILITOOLS

BILITOOLS Radiator Coolant Pressure Tester & Vacuum Refill Kit, 28-Piece Universal Cooling System Radiator Leak Tester & Refiller

#4
InterDynam

InterDynamics

InterDynamics Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More, 1 Oz, 374CS, Universal

#5
Vansky Air

Vansky

Vansky Air Conditioner Leak Detector: Professional Car Tool Automotive AC UV Dye Leak Detection Kit with Protective Glasses

#6
Bar's Leak

Bar's Leaks

Bar's Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz

#7
Bar's Leak

Bar's Leaks

Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz.

#8
K-Seal ST5

K-Seal

K-Seal ST5516 Heavy-Duty Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

#9
ACDelco GM

ACDelco

ACDelco GM Original Equipment 10-108 (12378255) Cooling System Sealing Tabs - 4 g

#10
TSI Superc

TSI Supercool

TSI Supercool Synthetic U/V Leak Detection Dye, 1 oz, 1 Application

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