Will coolant filter remove oil from the coolant??? - Ford Powerstroke Diesel Forum
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Old 06-03-2013, 09:05 PM
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Will coolant filter remove oil from the coolant???

I've got oil in my coolant, and have discovered my oil cooler is leaking. I will be replacing the oil cooler o-rings, and going back together with Rotella ELC 50/50 after the drain.

I have already gone through the painstaking process of thoroughly flushing my cooling system when I made the transition to the ELC. Will I have to flush the entire coolant system again in order to remove any remaining traces of oil (as evidenced in my degas bottle), or would a coolant filter system help? Thanks guys.
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Old 06-04-2013, 03:00 AM
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You'll want to run a full flush especially if your truck is like mine when I bought it, run for a while with a very badly leaking oil cooler. I drained it out, and flushed the rad, then filled it with a flush and distilled water then ran it for a day then this is what came out when I drained the flush out after the day

Took 2 more times for it to come out clean after a day, a year later my coolant looks awesome worth it to take the time the first time. Hopefully your's isn't nearly as bad as mine was, shame on you if it is. I had to pull ( and destroy ) the lower rad hose due to sludge build up clogging the rad drain.

Last edited by schlutzer; 06-04-2013 at 12:41 PM.
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