I agree, I don’t know where else I’d get one around here though. But I will be asking several shops that I know. Thank you for the belated offer, lol.

It would be interesting to know the consistency of the coolant silicate build up……

The other brick wall I hit, I do not have a new ‘original style’ for a control. Without that, any measuring would be useless.

 

Karl's clogged oil cooler; not flushed.











The scrapings.







My highly flushed cooler.

 

75,000 miles of Rotella ELC.

 

Jack, in looking at our last set of pictures with 75k of Rotella, back flushing on a cooler that has only seen Rotella might work really well.

 

Absolutely! I wish I had tried that, but I was in full forensics mode. All of the clogging was at the intake port, probably from whatever the Ford engine rebuilder put into the cooling system to prevent rusting in storage, with some rust.

 

Jack, awesome information thank you for compiling it. I never noticed all of the offsets plates International put into the cooler to improve the surface area/turbulence. Glad to see the fine results with ELC!

Have you cut apart any of the aftermarket coolers yet to see construction, flow paths, etc?

With the good stock oil cooler going I'm getting really interested in building a test rig to document oil cooler heat transfer performance. We have a bunch of old instruments here at work I might be able to use...flowmeter and a datalogging system are my 2 shortfalls. Those items are quite expensive.

Ran some quick numbers if I wanted to test oil coolers at actual truck conditions. Tech guide says 18.5gpm of oil flow at 3300rpm. Mark throws around the 50F rise number on the oil quite often so that would need about 462,500 btu/hr of heat transfer. Only 135kw of electric heat. Ok maybe not a home project.

 

No, I've never used any of the aftermarket ones, and my goal was towards the silicate issue.

I'm already so backlogged on projects I don't really want to get into a loop of many people sending me used oil coolers. I got Karl's because of the work documented in the PS.org thread, and then mine. I didn't even finish the video I started a few years back.

 

I ordered the old part number from ANWBL a month ago in anticipation of building up a parts stockpile for a winter project, and after reading this decided maybe it was better to take a close look at the PN... sure enough, its the new "3c34-6A810-CC".
\I'm in a Facebook group (mostly to laugh at the same questions being posted day in/day out and to look at people's rides) dedicated to 6.0's, so I decided to be a somewhat decent person and post a PSA with pictures of what the new cooler (mine) looks like. Was told that this has been out for close to a year, with some keyboard warrior "mechanics" claiming to have installed quite a few and have no come-backs or redo's as of yet, with some customers claiming the best delta's they have ever seen. Others are swearing off OEM and going to BPD's air to oil or IPR's relocation kit if/when theirs goes. Many are thinking, probably much too hopefully, that Ford got everything right this time and is sending out their best coolers yet. Like Jack and Mark have said, as much as I hate to agree sitting here with a brand new oil cooler... only time will tell if these are better, worse, or the same. Just need to be even more careful about maintaining our cooling systems, as if we weren't already...

 

Just the fact that this latest version goes back to the 10 row style tells me those FB cowboys are fibbing. Jack: thanks for all the pics - I went out to your YT channel yesterday but the video wasn't up yet - based on your 75K ELC cooler, I think I'll leave my coolant filter in place and maybe catch some of what appears to be rust chunks in your pics...

From what all has been posted here, if I were in the market for an Oil cooler, it'd be the Diesel Site one...

 

Scott, it's an unfinished video, unlisted, so only viewable in this forum.