• Fast, Economical and Accurate method to test for combustion gas leaks from: Head gasket leaks, Cylinder head leaks, Engine block leaks.

NEW & IMPROVED! Dual-Chamber for Higher Accuracy Test

• The tester features a dual-chamber design for higher accuracy to eliminate false readings. The first chamber will filter out any alkaline particles that could result in a false indication of a combustion leak. Test results in the second chamber will provide a true indication of a combustion leak.

Works on: Gasoline and Diesel engines!

• Positive Proof that a leak is present when the Tester Fluid changes color!

Gasoline Engine:
• Tester Fluid changes from blue to yellow.

Diesel Engine:
• Tester Fluid changes from blue to green.

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