When to change Transmission fluid

[Gpp]

I’,m getting different times and mileage on vehicle as to when to change transmission fluid.have about 55,000 miles on my 2022 ecoboost truck.when Do most people change it.and where on here is a good set of instructions on how to do it.yes,i know it,s not easy

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[710-oil-614]

Now.

The 8F35 does not have a serviceable filter. Don't wait if you want it to last.

 

[Cherokee]

I’ll do mine in my 26 Tremor at 30,000
And again at 60,000, then 90K
The two Turbo screen filters at 50,000 mile intervals.

 

[710-oil-614]

I’ll do mine in my 26 Tremor at 30,000
And again at 60,000, then 90K
The two Turbo screen filters at 50,000 mile intervals.

We're about the same. I am going to go 25k and 50k for the HF55, and then we'll see what the 50k one looks like. But to me just not really worth it to spread it out further than about 30k to save a buck.

 

[Cherokee]

Yeah, changing fluids is mighty cheap insurance.

 

[Tim d]

I’,m getting different times and mileage on vehicle as to when to change transmission fluid.have about 55,000 miles on my 2022 ecoboost truck.when Do most people change it.and where on here is a good set of instructions on how to do it.yes,i know it,s not easy

Go by fords recommendation. I think its 100k?

 

[shrek]

Dont go by Ford Recommended interval. If you do you will be replacing the trans at around 60K

 

[bgn]

Drain and fill every 30k. I would do two at your current interval.

Fluid is cheap compared to a new transmission.

Procedure is fairly painless.

Only thing I recommend is to monitor the transmission temp. I believe it needs to be 185-200 F.

 

[Propane Burning Man]

Ford recommends change it at 150,000! That's insane! They must want to sell rebuilt tranny's. My last 2 changes in my Transit were at 100k and 120k at 2 different shops, and they both told me the same thing "it looks to be in perfect condition, you must be lucky because I have rebuilt many of those troublesome tranny's with much less miles than that". Yeah, lucky. Get that worn out dirty oil out of there pronto.

 

[FHFR3Maverick]

I did my 1st change of all the drivetrain fluids at 30k and will be doing the next soon at 60k. I use all AmsOil fluids except the rear differential needs the Motorcraft fluid.

 

[Tim d]

Dont go by Ford Recommended interval. If you do you will be replacing the trans at around 60K

Iam at around 60k now, trans is fine. Why would ford recommend 100k if it isnt good practice? They would go out of business.

 

[Mox4615]

The weak point of the ecoboost is the transmission. Changing the fluid early helps remove the wear metals from the factory build, especially when it doesn’t have an external filter that can be replaced. The main priority for Ford is to sell as many vehicles as possible, they aren’t going to advocate for early preventative maintenance.

 

[710-oil-614]

Iam at around 60k now, trans is fine. Why would ford recommend 100k if it isnt good practice? They would go out of business.

Enjoy your grenaded tranny by 100k

 

[Tim d]

The weak point of the ecoboost is the transmission. Changing the fluid early helps remove the wear metals from the factory build, especially when it doesn’t have an external filter that can be replaced. The main priority for Ford is to sell as many vehicles as possible, they aren’t going to advocate for early preventative maintenance.

If i bought a vehicle from a manufacturer that failed early....i would not buy from that manufacturer again.

 

[shrek]

Iam at around 60k now, trans is fine. Why would ford recommend 100k if it isnt good practice? They would go out of business.

My tranny puked at 54K. Just saying. The fluid was BLACK

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