EV motor maintenance? Gear fluid change? When?

[Robert1380]

I usually take my Lightning in every 5k miles to rotate the tires and have the service team check over the vehicle. After checking the truck over, the service technician makes a video showing me the critical areas that have been checked. While watching the video I spotted what looked like an oil filter attached to the rear electrical motor. I asked my service advisor what I was seeing, and he check with the technician who confirmed that it was an oil filter, but it wasn’t scheduled for replacement until 150k miles. To my eyes it looks like regular oil filter, just like the ones I have changed on my ICE Fords in years past.

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That is awesome! Is that at a Ford dealer providing that service?

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[Piquette]

Yes, my dealer is Grappone Ford in Concord, NH.

 

[Robert1380]

Yes, my dealer is Grappone Ford in Concord, NH.

That’s a great dealer. They don’t do that around here. Hell your lucky if they even fix the vehicle correctly.

 

[Jseis]

All the published specs show it at 9.61:1. But I'm not sure I follow you on the heat thing. What does engine heat have to do with axle gear temperature? I would venture to say that the electric motor gear oil will get hotter than the differential on an ICE because the case is also housing the motor, whereas on an ICE truck the differential is separate, and it catches a lot of airflow.

I think we agree..,modern ICE AWD cars efficiency is tied to effective combustion and heat management critical with higher compression/operating temperatures/exhaust temps and engine/transaxles units means more nearby heat sinks, thus heat damaged gear oils.

BEV motor-transaxle units don’t generate anywhere near the heat that BEVs do, thus their transaxle gear oils have a ”cooler” environment. I’m not saying they don’t generate heat, but nothing like a BEV.

 

[Piquette]

BEV motor-transaxle units don’t generate anywhere near the heat that BEVs do, thus their transaxle gear oils have a ”cooler” environment. I’m not saying they don’t generate heat, but nothing like a BEV.

I’m sorry, you lost me there. Do you mean BEV motor- Transaxle units don’t generate anywhere near the heat that “ICEs” do?

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