DrSchultze
Member
I used this kit: https://www.ebay.co.uk/itm/254136111708
I think that all the tests with blue fluid are more or less the same, I'm no chemist but I don't think that there that many chemical reactions with CO2, that makes something change color from blue to yellow or green.
The difference in color between gasoline and diesel, must be due to some additional gas in either of them.
But what are the sensitivity of the test? Normally you wouldn'd carry out such a test, unless you suspect a blown head gasket, because of a mystery water loss or after the engine had overheated, and starting acting up, and in most cases you would just get a confirmation of the obvious.
But if the test is sensitive enough to detect that you popped a soda next to the expansion tank last week, it's really just an indication that you *might* have a leak somewhere. But I'm just guessing here
It would be interesting to do the test on a known good engine.
I think that all the tests with blue fluid are more or less the same, I'm no chemist but I don't think that there that many chemical reactions with CO2, that makes something change color from blue to yellow or green.
The difference in color between gasoline and diesel, must be due to some additional gas in either of them.
But what are the sensitivity of the test? Normally you wouldn'd carry out such a test, unless you suspect a blown head gasket, because of a mystery water loss or after the engine had overheated, and starting acting up, and in most cases you would just get a confirmation of the obvious.
But if the test is sensitive enough to detect that you popped a soda next to the expansion tank last week, it's really just an indication that you *might* have a leak somewhere. But I'm just guessing here
It would be interesting to do the test on a known good engine.