Uview Products 560500 560500 | Uview Combustion Leak Tester Fluid (Replacement)

Replacement Combustion Leak Tester Fluid (16 oz./480 ml). 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. Works on: Gasoline and Diesel engines!