This combustion leak tester tool is designed to detect combustion gas leaks in car engines. It works on petrol, diesel, and LPG engines and provides a fast, economical, and accurate method to test for combustion gas leaks. The tool includes a 50ml test fluid, enough for 25 applications, and is made of polypropylene. It is ideal for routine checks and scheduled maintenance work, as well as for engine checks on used cars. The tool is easy to use and provides positive proof of a leak when the tester fluid changes color on detection of CO₂ gas.