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Prestone® Antifreeze & Coolant Tester

Prestone® Antifreeze & Coolant Tester

Regular price $15.99 USD
Regular price $25.99 USD Sale price $15.99 USD
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✅ Key Features & Benefits

Feature / Benefit What It Means / Why It’s Useful
Anti-freeze / anti-boil protection test Helps you know whether coolant will properly protect against freezing in cold weather or overheating/boiling in hot conditions. 
Low-cost and portable
Affordable tool that can be kept in your toolbox or car, making periodic coolant checks easy and practical.
Measures coolant concentration / density A more concentrated coolant offers better protection — the tester shows if coolant is diluted (e.g. too much water), which weakens protection. 
Visual inspection for rust, sediment, debris Over time coolant can accumulate rust or particles — the tester’s clear chamber lets you see this, so you can decide if a coolant flush is needed. 
Universal compatibility with ethylene/ glycol coolants Works with most common coolant types (ethylene-glycol based), not just one brand — making it versatile across vehicles. 
Simple, fast, DIY-friendly No special tools or skills required: draw coolant, read the gauge, inspect visually. Good for car-owners doing maintenance at home.
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