Prestone AF 1420 Antifreeze Coolant Tester Review

After trying this coolant tester, I was impressed with how easy it was to use and how accurate the readings were. It saved me time and money by pinpointing the issue with my engine's coolant. The only downside is that it can only be used for testing antifreeze coolant, so I'll need to purchase another tester for my other fluids.

A great product that has been on the market for years but is essential for checking the quality of the antifreeze in your radiator. Easy to read, simply insert into a COLD radiator, squeeze the bulb and fill the chamber. The dial accurately shows the performance of the coolant. If you want to change your own antifreeze or check the quality of the antifreeze in your radiator, you'll need one of these. Lasts for years. I keep mine in a ziplock bag and attach it to a gallon of antifreeze in the…

Works great. reliable, durable, accurate. tested on new Prestone Premix (-34 F). The tester shows -34. Easy to use. easy to read. BUT. should keep the coolant in the charge line. and a vertical tester. for proper reading. Defect. #1. Air bubbles stick to the indicator. B. by ingress of coolant through the suction hose when the rubber bulb is quickly compressed due to the too large diameter of the hose. It's annoying and difficult to squeeze the tester to get rid of the bubbles. Defect. #2…