YSTOOL Radiator Pressure Tester Pneumatic Vacuum Cooling System Purge Refill Kit 28PCS Universal Automotive Water Tank Leak Test and Coolant Fill

The YSTOOL Radiator Pressure Tester is a 28-piece kit designed to test vehicle radiators for leaks and to vacuum and fill coolant systems. The kit includes four dedicated adapters and a universal tapered head adapter that is suitable for almost all models. The kit is versatile in terms of the types of vehicles for which it can be used, including a 1975 Corvette, 2002 Audi TT, 2008 Porsche 911, and a 2008 Chevrolet Equinox. Most reviews of the YSTOOL Radiator Pressure Tester are positive, with users highlighting its effectiveness in removing air from car cooling systems and assisting in finding radiator leaks. One user replaced the expansion tank on a 2002 Porsche 911 Turbo and successfully refilled the coolant using the kit. Another user reports that the kit is easy to use and was very effective in finding a leaking radiator. However, some reviews are negative, with users expressing frustration that the kit was not effective in vacuuming the system: one user had to pump 920 times to get any vacuum, and another user was unable to create enough power to vacuum down the system using a bicycle pump. Some reviewers also criticize the quality of the adapters in the kit, noting that they leaked during testing and were not of the best quality. One user had a significant antifreeze leak when hitting the pressure relief button on the pump.