BT-600 Replacement Combustion Leak Test Fluid 16 oz

Not much to say. It show up a bad head gasket if you have the proper suction device.

Orchard it should

You're paying for the peace of mind you'll have, it will confirm whether or not you truly have a blown headgasket. Some cars (looking at you BMW) like to overheat even when the headgasket is not blown, so this is an essential tool for being able to say 100% that you have hydrocarbons in your coolant. The hydrocarbons are what this detects, and exhaust gasses create them. If the headgasket is intact, you won't have hydrocarbons in your coolant. So it's a pretty darn good test.I was able to use this on a car that ran fine, showed no issues, but slightly overheated at red lights. It confirmed that the headgasket is indeed blown and will save me tons of time and money.

Not a cheaper way to confirm bad head gasket. This is the way to go.

Accuracy is important when block testing .This product is the best for it's purpose .Dark Blue and changes clearly to a yellowish green when combustion gases are present in the cooling system .

Easy to view color change ready to use. Helped me to verify the issue in a short time.

This stuff detected a head gasket leak in about a minute. Unless your leak is so bad that it immediately blows all the fluid out of the tester, it only takes about an ouce of fluid for one test. If the fluid does blow out, no need to retest. :-P

I had purchased some discount auto store version of this test fluid. Didnt show any color change. Purchased this stuff and had an immediate color change showing head gasket failure. This stuff is very sensitive and way better than anything you're gonna buy at a discount auto parts store.