Place your order online and pick it up at your local store for free. The product is a fluid used to test for head gasket leaks in vehicles Most reviewers found it effective at detecting issues, though some noted it can be messy to use and requires safety precautions. The oem test fluid for block tester is designed for use with block testers to quickly and easily pinpoint the combustion leaks caused by bad head gaskets and cracked blocks. Detects combustion leaks on engines Use the leak detector fluid with the lisle 75500 combustion leak detector
Indicating fluid changes from blue to yellow when exposed to combustion gases in the radiator Gasoline, diesel, propane, natural gas and other alternative fuels Requires combustion leak detector, sold separately.
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