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.

I had been chasing an overheating issue that was also causing my coolant resevoir to backup. After changing the thermostat which was faulty the isue still persisted. The pressure building in the coolant reservoir was caused by a faulty head gasket. This kit quickly identified the presence of exhaust gasss in the cooling system and I'm now able to carry out a head gasket repair. Very quick and simple to use

Used twice still unsure with results..

Excellent for checking if the headgasket has blown into the water system, but be careful if it's positive then you have a blown gasket /head but if it's negative you may still have a blown head gasket just not into the water system, if your getting very high pressure in the water system this is a very fast and easy way to check.

Worked well easy to use and gives you a piece of mind that you have or have not got headgasket issues with you car well worth the money.

Excellent kit which comes with clear instructions and is very easy to use.The first test i carried out was on a recently acquired Audi which I suspected had a head/headgasket issue and the test came back positive (the liquid turned from blue to green within a minute or two). The diagnosis was later confirmed by a trusted garage who carried out their own test and found exhaust gasses in the coolant.The second test i carried out was on a SEAT which has been suffering from coolant loss for at least a year or so. As I'd already bought the test kit for the Audi i thought I would give it a go with this car too. Again the test came back positive (liquid turned blue to yellow very quickly). This diagnosis was also later confirmed by a garage who found the EGR cooler had failed.I also tested our other vehicles and thankfully in those cases the tests all came back negative.In summary a really useful kit, very easy to use and in my experience 100% accurate.

This kit works perfectly, showed that my head gasket was faulty, with no doubt about results.

Color hasn't changed but when I take cR to garage will confirm the result and will update my review