I decided to give this stuff a try on my 2002 F150 with its less-than-optimally-maintained cooling system. During my last coolant drain/fill about 3 years ago I noticed some mild crud/scale buildup in the overflow tank, so I wouldn't be surprised if there was some cleaning needed.
This morning I suctioned out a small amount of the coolant and emptied a bottle of RMI-25 into the tank. The appearance was like if you left a yellow highliter to dissolve in some water. It contains a fluorescent dye that you can use to trace leaks with a black light, if needed.
The label indicates I need to drive for about 2 weeks to get a thorough cleaning.
I will update as time goes on. I'm hoping I will eventually see the nasty stuff floating at the top of the reservoir.
This morning I suctioned out a small amount of the coolant and emptied a bottle of RMI-25 into the tank. The appearance was like if you left a yellow highliter to dissolve in some water. It contains a fluorescent dye that you can use to trace leaks with a black light, if needed.
The label indicates I need to drive for about 2 weeks to get a thorough cleaning.
I will update as time goes on. I'm hoping I will eventually see the nasty stuff floating at the top of the reservoir.
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