Performance Tool W1655C Antifreeze Tester

Product Description

The PERFORMANCE TOOL W1655C is a float-ball antifreeze tester designed to measure the freeze protection strength of ethylene glycol-based coolant in automotive and light-duty cooling systems. The tester draws a coolant sample from the radiator or overflow reservoir, and color-coded floating balls indicate the relative concentration of antifreeze in the mixture. It works on both hot and cold radiators, making it practical for quick checks during routine service without waiting for the system to cool down. HVAC and refrigeration techs working on hydronic systems with glycol circuits will also find this tool useful for verifying loop concentration.

This tester is suited for automotive technicians, fleet maintenance crews, and HVAC service professionals who need a fast, no-fuss reading of ethylene glycol antifreeze strength. It is appropriate for use on passenger vehicles, light trucks, and any closed-loop cooling system running standard ethylene glycol coolant. The color-coded ball system eliminates the need for charts or conversion tables at the point of service, keeping workflow efficient on the shop floor or in the field.

Key Features

• Float-ball design with color-coded indicators for direct freeze-protection readings
• Compatible with ethylene glycol type antifreeze formulations
• Usable on hot or cold radiators for flexible service timing
• Compact, single-piece construction requires no separate tools to operate
• Lightweight at approximately 0.08 pounds for easy carry in a tool bag or service kit

Compatibility

Designed for use with ethylene glycol-based antifreeze coolant systems in automotive radiators and similar closed-loop cooling circuits. Not intended for propylene glycol or other coolant chemistries.

Installation Notes

This is a hand-held test instrument, not an installed component. Exercise caution when sampling from a hot, pressurized cooling system — always release radiator cap pressure slowly and allow pressure to vent before inserting the tester. Draw only enough fluid to float the indicator balls and return the sample to the reservoir after testing. Clean the tester after each use to prevent cross-contamination between vehicles or systems.