Transmission fluid change ? - Diesel Forum - TheDieselStop.com
2008- 2010 Gas Engines Discussion of the gas engines available in the 2008- 2010 Super Duty trucks

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post #1 of 16 (permalink) Old 01-06-2011, 09:15 AM Thread Starter
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Transmission fluid change ?

I have an 2010 with a 5.4 triton and the 5-speed automatic transmission. I am pushing 40,000 miles now and when should i change the tranny fluid? Also, would you do a tranny flush or just drop the pan, drain and filter change?

2012 F-250 6.2L FX4 6 Speed Auto

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post #2 of 16 (permalink) Old 01-06-2011, 10:59 AM
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Not sure what the manual says but I am a proponent of servicing the tranny at least every 25k and every 20k if you tow alot. For your first tranny service I would drop the pan, change the filter and refill, all at the Ford dealer so it shows up on your CarQuest and will keep your warranty in place. I also added an external tranny spin-on filter from Summit Racing; at about $40 it is a great option which will eliminate the need for an internal filter change in future flushes.
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post #3 of 16 (permalink) Old 01-18-2011, 06:04 PM
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I have 110,00 on my 08 and last week I asked a Ford Mechanic the same question and he pulled the dipstick and looked,smelled and said keep driving. Most of my miles are highway, 5% towing. I know I will be corrected, but he claims it not just a simple filter change, something about valve body connected with filter?
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post #4 of 16 (permalink) Old 04-03-2011, 04:26 AM
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Drain and drop the pan and replace filter, then refill back to capacity. Do this at minimum every 30K, or sooner if towing frequently.

Or have dealer service tranny, that is what I do with my Expedition, going on 112K with no issues.

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post #5 of 16 (permalink) Old 03-22-2012, 11:09 PM
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Im worried a lot about my car's engine oil. This makes sense, considering oil bathes and lubricates the power plant of the vehicle. But it's the job of the transmission to parcel out the engine's power to the wheels
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post #6 of 16 (permalink) Old 08-06-2013, 01:07 PM
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I've always heard that you shouldn't change your transmission fluid at all, haha.

This guy has some good advice, guess I was wrong. Says 30,000 miles, uh oh, BRB.

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post #7 of 16 (permalink) Old 08-06-2013, 01:19 PM
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Opinions will vary. I knew an old guy when I was a teenager that never changed the oil in his cars or trucks. Just the filter. His logic was that oil cannot be broken down. Must admit, his old Datsun truck was still running when he died. Didn't smoke either. Go figure.

Many people don't believe in changing transmission, rear end, power steering, brake fluids. They just drive it till it needs a new whatever.

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post #8 of 16 (permalink) Old 08-06-2013, 01:24 PM
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Opinions will vary. I knew an old guy when I was a teenager that never changed the oil in his cars or trucks. Just the filter. His logic was that oil cannot be broken down. Must admit, his old Datsun truck was still running when he died. Didn't smoke either. Go figure.

Many people don't believe in changing transmission, rear end, power steering, brake fluids. They just drive it till it needs a new whatever.
Oh my gosh, the oil though? That's insane. I didn't change the oil on a motorcycle I had and it blew up while I was riding it...I'm guessing it was related!
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post #9 of 16 (permalink) Old 08-06-2013, 02:34 PM
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Quote:
Originally Posted by Little General View Post
but he claims it not just a simple filter change, something about valve body connected with filter?
Not that I know of. And I do know this transmission very thoroughly.

It does require a heated flush machine to change all of the fluid. Maybe that is what he meant. Sniffing the oil to see if it needs to be changed is about as useful as checking what color the truck is painted. If you can smell that it needs to be changed it's too late, the fluid is burnt and the trans is probably also burnt. How can he tell the level of the additives? How about the viscosity of the fluid? He is very old school, and that will cost people with one of these new school trucks big money.

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His logic was that oil cannot be broken down.
That's just totally wrong. He does not know what he's talking about. Oil viscosity gets lower as the oil is subjected to shear inside an engine and trans. Oil (both engine and trans, though more so in the engine) gets contaminated. The filter CANNOT remove dissolved contaminants. Additives wear out. New filters do not replace the additives. He is VERY ignorant about modern oils.

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Many people don't believe in changing transmission, rear end, power steering, brake fluids. They just drive it till it needs a new whatever.
That's VERY true.

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post #10 of 16 (permalink) Old 04-21-2014, 10:14 AM
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Originally Posted by Pappy19 View Post
Not sure what the manual says but I am a proponent of servicing the tranny at least every 25k and every 20k if you tow alot. For your first tranny service I would drop the pan, change the filter and refill, all at the Ford dealer so it shows up on your CarQuest and will keep your warranty in place. I also added an external tranny spin-on filter from Summit Racing; at about $40 it is a great option which will eliminate the need for an internal filter change in future flushes.
Old thread ... but regarding this external filter, do you still need to have the internal filter after you install this external one?

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post #11 of 16 (permalink) Old 04-21-2014, 10:38 AM
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Yes you do. The transmission will not operate without the internal filter.

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post #12 of 16 (permalink) Old 04-21-2014, 11:52 AM
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Yes you do. The transmission will not operate without the internal filter.
Thanks. Do you by chance have the part number for the internal filter? Mine is an 08 v10 auto 4.10. Also, is the "reusable" gasket really reusable?

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post #13 of 16 (permalink) Old 04-21-2014, 01:36 PM
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I don't keep track of part numbers. The reusable gasket is really reusable. I've reused them many times.

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post #14 of 16 (permalink) Old 04-22-2014, 04:29 AM
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I was checking on this as well. 2008 had a change with the 2nd run productions to remove the external filter and only went with an internal one. Best bet is to give your VIN to a Ford Parts counter so they can make sure which setup you have. I've just decided to let the dealer do it next month and get the part number then for future ones.

I have the V10, so not sure if your tranny is the same.
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post #15 of 16 (permalink) Old 04-22-2014, 07:53 AM
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The V10 and diesel trans were the same.

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