Oil used in motor/axle/differential assembly

[JHC283]

What type and viscosity of oil is used in the differential assembly on these trucks? I looked online and in the manual. I’ve seen some recommended service intervals (90,000) but no more information on it. Anyone know or can point me in the right direction? Thanks

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[Maquis]

The 2023 manual says 10 years/150K miles.
The fluid spec isn’t shown.

 

[JHC283]

The 2023 manual says 10 years/150K miles.
The fluid spec isn’t shown.

I have a 2024 Flash bought December 6th, has over 7000 miles on it now…. Put a 1000 miles a week on it, 150,000 Will be here long before 10 years!

 

[TaxmanHog]

Shop / Service manual

 

[Maquis]

From the owners manual, shop manual, or other? Just curious.
thanks!

 

[marc_hanna]

Here's the spec sheet for the Mercon ULV:

 

[21st Century Truck]

I recall (likely correctly but it's been a while) that Mercon was also the fluid used in my 2022 Ford Mustang Mach E, in its AWD motors.

 

[TaxmanHog]

From the owners manual, shop manual, or other? Just curious.
thanks!

Shop / Service manual

Updated post four with that information and a snapshot of the volume needed for the front motor.

 

[Firn]

Also, filters are specific for this use case. That and I believe that it is not just a simple drain and fill.

See posts 14 and 15
https://www.f150lightningforum.com/forum/threads/oil-change-on-lightning.19444/

 

[TaxmanHog]

Also, filters are specific for this use case. That and I believe that it is not just a simple drain and fill.

See posts 14 and 15
https://safe.menlosecurity.com/http.../forum/threads/oil-change-on-lightning.19444/

We've had conversations about what needs to be done on this forum as well.

Oil Change on Lightning

IMHO, this will be going to the service department when mine's due.

 

[I <3 My Lightning]

Note the pour point temp... I speculate this is why the motor temp gauge doesn't really deviate from middle as seen with the excellent work by TaxmanHog, who's purposely cold soaking his ride. As others have also noted at even much lower temps the same lack of motor temp gauge deviation.

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