Join Date: Feb 2014
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Second post here, I know, but DON'T WASTE YOUR TIME WITH THE OEM OIL COOLER! I speak from personal experience. And a simple google for search terms for "high eot after oil cooler" or similar will back up my personal experience.
Long story short, there is typically so much crud in the 6.0 coolant system due to poor manufacturing processes during block casting, the crap Ford gold coolant that ALL 6.0's had in them at some point(known for clogging up small passage ways) and due to the havok the EGR cooler can do to the coolant, especially if it is starved of coolant flow due to a clogged oil cooler and flash-boils the coolant, that you'll never be able to completely get rid of it and it'll be around to find it's way back into your brand new oil cooler eventually (or WAY sooner). Go with a BulletProof Diesel air-oil cooler and eliminate ever having to deal with a clogged oil cooler again.
Remember what I said about personal experience? Yeah, I replaced my OEM oil cooler with a new OEM oil cooler and it plugged up almost immediately, even after an agressive coolant system flush and 35 gallons of distlled water and running it a week on pure distilled water orior to starting the OEM replacement. That's right, a week later I had the top of the motor all apart again due to 234f around-town EOT on a brand new OEM oil cooler.
Installed the BPD kit this time and have yet to see over 205f EOT. Usually 190s.
And don't skimp on the oil filtration either - BPD offers two versions of their cooler(besides standard vs heavy duty). One retains the factory filtration system and the other uses a remote, spin on filter - GET THE REMOTE FILTER!!! Many high EOT probems have been linked to a faulty oil cooler bypass valve which is part of the oil cooler cover/filter housing base. It's a shotty, brass and rubber valve with a spring. It's probably about $6 in materials, but Ford doesn't sell it separate - you have to buy the whole oil cooler cover assembly at around $300!!! Not to mention the crappy plastic standpipe and plastic valves that tend to break and find their way into the oil system.
Besides head studs and a BPD egr cooler or EGR delete, I consider this BPD oil cooler a MUST DO when it comes time to replace the oem oil cooler.