How often?
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Senior User
Joined: Sep 2003
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From: Blaine Wa
How often?
Should the tranny fluid and filter be changed? See my sig for my truck if you need to know that. Sorry for all the questions latley. Been a long time since I have owned a 4x4!
Posting Guru
Joined: Nov 2002
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From: I'm lost somewhere in NJ -- can someone please find me?!?!?!?
I think Ford says about every 100,000 miles. Apparently, there have been people who cut up their tranny filters after 50-100K and found they were still just about good as new.
I say change it anyway when you change the fluid (or every other fuild change). The filter is cheep, especially compard to the cost of 16+ quarts of Mobil1 Synthetic ATF every 30,000 miles.
I say change it anyway when you change the fluid (or every other fuild change). The filter is cheep, especially compard to the cost of 16+ quarts of Mobil1 Synthetic ATF every 30,000 miles.
Lead Driver
Joined: May 2003
Posts: 9,303
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From: Lyndonville, Vermont
There is a special flush proceedure. If you are not towing I feel 30k is alittle much. Esp with mobil 1..
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Posting Guru
Joined: Jul 2002
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From: Broussard USA
If you drain the convertor you will get more out but IMO that is a waste of money if you change you fluid often. If you go the distance without a change then I would drain the convertor (there is a bolt on it) but changing often will keep the oil plenty fresh.
Also towing has a lot to do with trans oil, if you tow change it more.
Also towing has a lot to do with trans oil, if you tow change it more.
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Fleet Mechanic
Joined: Sep 2002
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From: Gretna ,LA.
I flushed mine @ about 30,000.Flushed everything, then drained the pan and changed the filter, checked old filter, looked good.I used double amount of fluid but gave me a good piece of mind.Flushing gets all trash out of cooler etc.
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Joined: Sep 2003
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From: Indiana
On all my vehicles I have owned, I change the tranny fluid/filter every 25,000-30,000 miles.......before I got rid of my last truck, I would changed the ATF every year, reguardless of the miles, just because I drive the truck hard. I have never done those full ATF fluid exchanges, but I bet they are good.
I sold my last truck about 2 years ago with 150,000 miles on it and it has 165,000 hard miles on it, with the original tranny that shifts great. My wifes SUV also gets a yearly ATF/filter change, just because she puts 25,000 miles on her SUV a year. Well worth all the work/time/money.
I sold my last truck about 2 years ago with 150,000 miles on it and it has 165,000 hard miles on it, with the original tranny that shifts great. My wifes SUV also gets a yearly ATF/filter change, just because she puts 25,000 miles on her SUV a year. Well worth all the work/time/money.
Sit. Stay.
Joined: Oct 2001
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From: Washington State
Originally posted by haroutd
I think Ford says about every 100,000 miles.
I think Ford says about every 100,000 miles.
That's the manufacturer's specified interval. (responding to 30K interval...)
30K is the interval.
Filter does not need to ever be changed. (Although I did on mine.)
DIY change procedure is found in the FAQ or tech articles. (Written by Ford Transmission Engineer, Mark Kovalsky)
Interval and procedure is the same no matter 4x2 or 4x4.