GREEN SLIME! - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 05-18-2011, 05:32 PM Thread Starter
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Exclamation GREEN SLIME!

Well I have had my 6.0 for about 2 1/2 months now. Been doing little upgrades along the way. My most recent venture was a coolant filter system I built myself.

I installed my first filter and ran for about 2 weeks (300 miles). Replaced the filter today. Out of curiosity, I cut the filter open and pulled out the media. I was expecting to see sand/grit if anything; what I found was a green slime. It looked like I had been filtering a fish aquarium rather than a coolant system.

When I purchased the truck originally, the previous owner was sure to tell me that the coolant had been replaced with an ELC (red), don't know the manufacturer. I called the auto parts store to verify that the filter I was running did not have any additive. The shop owner looked it up and verified, no chemical in this filter.

I have distilled water, restore and restore +, in preparation for a system flush. Since someone had gone to the trouble of replacing the coolant with ELC I thought I would use this to filter any garbage out first, before doing the flush.Coolant temperatures look good so I don't think I have any EGR/Oil cooler issues.

DOES ANYONE HAVE ANY IDEA WHAT THE GREEN SLIME IS? My only thought is they used well/city water to refill the coolant system and it is some kind of algae???

What ever it is, I don't think should be there

2004 F250 Lariat/6.0L/SRW/Crewcab/Shortbed FX4
EDGE Evolution CTS
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RCD-EGR Delete
Cat/Muffler Delete
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post #2 of 2 Old 05-18-2011, 06:00 PM
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You may have it well water i would do 2 restore flushes and use distilles water hope you get the green slim out
2 stroker

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coolant, elc, filter, flush

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