6.0L coolant - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 12-04-2012, 01:01 PM Thread Starter
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6.0L coolant

So, I might be getting an EGR Delete kit and that means i gotta flush out all my crappy silicate based coolant and put in new coolant. I wanna know how to flush out my cooling system (and if i can just use water and nothing else) and if this Peak Long Life phosphate and Silican free formula is any good, it meets ASTM D-3306 and ASTM D-4340 standards.

2007 Ford F250 Lariat 6.0 Powerstroke

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post #2 of 2 Old 12-04-2012, 03:09 PM
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You want a coolant that meets Cat EC-1 standard not that stuff. There are lots of them around. Napa sells the Zerex ELC under part no. ZXED1. If it isn't on the shelf give them that part number and they'll have it the next day.

My flush procedure is in the 6.0 Tech Files section. If you want to skip the chemical flush go ahead but flush thoroughly with tap water followed by at least 24 gals of distilled water.
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