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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford SVT Raptor General Discussions [GEN 1]
Oddity or odd *****
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<blockquote data-quote="W0n70n" data-source="post: 1567552" data-attributes="member: 44703"><p>I found sticky brown goop on my radiator cap as well and it was also in the overflow res so I flushed everything as well as I could (took 6 hours to get it to look decent) and refilled with mc gold since that's what's still recommended on the 2010 6.2 and there are still some particles that are in there but not nearly as bad. I had never had overheating issues and I still don't but it's cool in my area so hopefully everything is alright. My best guess after changing oil (and finding no evidence of water) and coolant (finding only goopy brown paticles) is that at some point either incompatible coolants were mixed together or hard tap water was added during a refill and the coolant reacted poorly with it. I'm not 100% sure on the yellow coolant but I have found from my research that mc gold is not compatible with generic antifreeze and can create sludge with certain minerals in tap water. Just my .02.</p></blockquote><p></p>
[QUOTE="W0n70n, post: 1567552, member: 44703"] I found sticky brown goop on my radiator cap as well and it was also in the overflow res so I flushed everything as well as I could (took 6 hours to get it to look decent) and refilled with mc gold since that's what's still recommended on the 2010 6.2 and there are still some particles that are in there but not nearly as bad. I had never had overheating issues and I still don't but it's cool in my area so hopefully everything is alright. My best guess after changing oil (and finding no evidence of water) and coolant (finding only goopy brown paticles) is that at some point either incompatible coolants were mixed together or hard tap water was added during a refill and the coolant reacted poorly with it. I'm not 100% sure on the yellow coolant but I have found from my research that mc gold is not compatible with generic antifreeze and can create sludge with certain minerals in tap water. Just my .02. [/QUOTE]
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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford SVT Raptor General Discussions [GEN 1]
Oddity or odd *****
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