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Y-Blockhead · 10-26-2016, 10:04 AM

Whenever I have a leak I can not find, be it coolant, trans oil, or engine oil, I add some fluorescent dye to the system and after running it check various places with a infrared light. Even if it is coming out the overflow the dye will show on the bottom of the car and end of tube.

10-26-2016, 10:04 AM	#31
Y-Blockhead Senior Member Join Date: Jul 2011 Location: Redondo Beach, CA Posts: 5,854	Re: Losing Coolant Whenever I have a leak I can not find, be it coolant, trans oil, or engine oil, I add some fluorescent dye to the system and after running it check various places with a infrared light. Even if it is coming out the overflow the dye will show on the bottom of the car and end of tube. Last edited by Y-Blockhead; 10-26-2016 at 10:56 AM.