RELD Cylinder Head Gasket Tester Kit CO2 Combustion Leak Gas Test Universal for All Cars and Motorcycles Petrol Diesel Block Rapid Engine Leak Detector for 50 Tests

It was very easy to set up and use. It saves a lot of time, effort and costs. It would take you time to book in to see a mechanic, effort and time to get to said mechanic and then the added cost of his time and expertise. This simple but effective product saves all of this. The a only thing I didn't like were the instructions were really in a small font which made the extremely difficult to read without magnification. Apart from that small inconvenience, i would highly recommend this.

Item worked perfectly saved a lot of time and results easily understood well worth the price as it can be used up to 50 tests would cost a great deal more I f going to a garage

Excellent product. Was convinced I had a failed head gasket and being quoted a massive amount to fix it. As a sanity check, I bought and tried this. No yellow colour. I took the car to another dealer, who confirmed the car had two faults, neither of which were the head gasket. So this worked for me and gave me the reassurance to question the first garage diagnosis.

Used this to diagnose a head gasket failure on a Honda goldwing. Very easy to use.

great item and easy to use

Great kit I thought it was for one test but you get 20 test well worth the money

Works perfectly, tested car liquid stayed blue, confirmed head gasket ok, turned out to be coolant pump, just to confirm this actually works I breathed into it after use and it turned green after 10 seconds. This is better than previous kits I’ve used as it uses less liquid. Very happy.

I don't wanna say it doesn't work at all but it didn't work for me, but I can see reviews on YouTube where it has worked for people. Doesn't fit snug it seems for me meaning it doesn't stay confained, so may need an adapter?