Should I change my transmission fluid?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Kylelwsn

Member
Joined
Jan 22, 2021
Posts
7
Reaction score
0
Location
Newport News
I recently purchased a used 2010 Expedition with 80K miles on it. Transmission shifts fine but should I go ahead and get the fluid and filter replaced, since it's been 10 years?
 

ExplorerTom

Full Access Members
Joined
Apr 2, 2015
Posts
2,287
Reaction score
1,039
Location
Colorado
Like any fluid in a vehicle, it’s a lifetime fluid. Who’s lifetime? It’ll last all the way up until that component fails- and the fluid may or may not be the culprit.

I’d change it.

Bought a 2014 a little over a year ago with 90k miles. I changed it over the summer.
 

71Rcode

Full Access Members
Joined
Aug 30, 2012
Posts
258
Reaction score
69
Location
DFW Texas
Yep. Did on my 11 with motorcraft fluid and filter in garage at 90k.
 

Trainmaster

Old School Member
Joined
Jun 17, 2017
Posts
3,619
Reaction score
2,122
Location
Rockaway Beach, NY
The problem comes with "who changes it". If you do it yourself and know it's done right, it's an excellent idea. If you take it to Jiffy-Lube and the crackhead fills it with Universal Red Dot fluid and overfills it a quart, you'll be cutting its life short.

Maybe it's where I live, but I've never seen a shop do the job correctly.

I change mine every 60-70K miles.
 

ExplorerTom

Full Access Members
Joined
Apr 2, 2015
Posts
2,287
Reaction score
1,039
Location
Colorado
It’s not a hard process, but it’s sort of a PITA. No dipstick means you have to pump the fluid into the transmission pan. There are kits to add a dipstick.
 
OP
OP
Kylelwsn

Kylelwsn

Member
Joined
Jan 22, 2021
Posts
7
Reaction score
0
Location
Newport News
Thanks for the advice. Called a shop today and they wanted 635$ for the job, seems high. Going to shop around.
 

justinp16ex

Full Access Members
Joined
Nov 30, 2020
Posts
130
Reaction score
49
Location
Wisconsin
Thanks for the advice. Called a shop today and they wanted 635$ for the job, seems high. Going to shop around.

You could drop the pan and change the fluid and filter for like $100 or less. Ford tech makuloco has a good YouTube video on it. I found the mercon lv for a good price on rock Auto. This is a job that's definitely best to do yourself if possible, not real difficult. You'll save many moneys and know that it was done correctly. Good time to dump the transfer case too.
 

71Rcode

Full Access Members
Joined
Aug 30, 2012
Posts
258
Reaction score
69
Location
DFW Texas
I did all of those when my expedition hit 90000. Just spent an afternoon doing at all. Got all the fluids from rock auto definitely the best value. All you need is a hand pump from auto zone to pump the fluid from the bottles into the transmission or differentials or transfer case. Also you can not pull the rear differential cover. You just have to pull the drain plug in refill. There's no room to remove the cover on the Expedition versus the F150
 

ManUpOrShutUp

Full Access Members
Joined
Mar 27, 2016
Posts
2,113
Reaction score
1,157
Location
PA
Thanks for the advice. Called a shop today and they wanted 635$ for the job, seems high. Going to shop around.

Sweet jesus. My local trans shop charges $400 for a flush and $200 for a drain/fill. He has 40 years experience, has my complete faith in anything trans related and I still think $400 is expensive. $635 seems ludicrous.
 

joethefordguy

Full Access Members
Joined
Apr 10, 2017
Posts
741
Reaction score
231
Location
Texas
Can’t hurt.
Cheap insurance. I’d do best available synthetic and filter.
 

NowThatsDamp

Member
Joined
Feb 11, 2021
Posts
6
Reaction score
1
Location
Austin
Drain and fill it every 60k miles. No need to do a "Power flush". Lifetime transmission fluid isn't a myth though. When the fluid fails, the transmission fails. See? The fluid lasted the lifetime of the transmission.
 
Top