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International Automotive Technicians Network
Re: Combustion Leak Detection Fluid aka Block Test
Posted to Technical Theory Forum on 7/25/2018

I was cheap so I poured the fluid back in every time I used it, unless I managed to get coolant in it. If the fluid changed color a 30 minute wait would have it back to blue.

After 10 years of regular 2 to 3 times a month use I purchased new fluid because I ... Login to read more.