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6.7L Power Stroke Engine and Drivetrain Discussion of the 6.7L Power Stroke diesel engine and drivetrain in the 2011-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.7L Power Stroke engine.

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Old 04-18-2013, 06:18 PM   #1 (permalink)
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Tranny Filter Tech

I read this article in Trailer Life magazine last fall and I thought it was quite fascinating. After having read it, my plan was to put an extra filter on the transmission as per the article. I'll post a couple quotes here:

Quote:
On a new truck, it’s important to get the filter on right away to eliminate Type 1 debris and catch the Type II break-in material. On a used truck, you can install the filter at any time.
Quote:
between the built-in Type 1 and Type II contaminants from break-in, the average new transmission will generate 75 percent of its lifetime contaminants in the first 5,000 miles. [...] Either you need to change that fluid early to get the contaminants out or start filtering better early.
I was wondering what you all's thoughts are on this?

-abe
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Old 04-18-2013, 09:10 PM   #2 (permalink)
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My thoughts is that the SAE article that they quote is from 1998. That's a long time ago.

In 2008 Ford changed the TorqShift internal filter to a filter that is better than the Magnefine. The external filter was eliminated because it was no longer needed.

Adding a cooler line filter to one of these newer transmissions will just increase restriction and reduce cooling.
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Old 04-18-2013, 09:31 PM   #3 (permalink)
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No doubt that a filter would be a bit of a restriction, but if sized properly the pressure drop, and therefore flow reduction, would be minimized and within spec.

But based on the article, and taking into consideration expertise given your previous employment, would you recommend swapping out the filter after the first 3K - 5K miles?
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Old 04-18-2013, 10:12 PM   #4 (permalink)
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No, I would not.

As for the restriction, as long as you're sure it is within spec.
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Old 04-19-2013, 12:22 AM   #5 (permalink)
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In my years of working on automatics or in shops where they are worked I see little that tells me that a filter will fix anything. Parts not hardened, seals that are cut or age harden, cost cutting low quality, or planetary gears that break teeth are not things a filter would impact.

The newest "fuzzy" filters capture and hold wear debris of harmful size well.

I would think that if the wear-in debris is really a concern for you then an early pan drop and filter change is the most cost effective thing you can do that might have a benefit.
Doing this does not introduce the risk of rubber hose for filter dumping the fluid and harming the transmission it was installed to save.

I have noticed a lot of articles in magazines that were short on real knowledge and long on "I need to come up with something for this month's column" or "I need to sell something advertised here".
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