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changed the differential gear oil

YONGSEOK KIM

Member
Joined
May 5, 2025
Threads
9
Messages
23
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173
Location
대한민국
Vehicle(s)
2025 Ford Mustang GT // Volvo S60 // BMW iX1 // Kia Canival High Limousine
Hello everyone! I’m a Mustang GT owner from South Korea.

I bought my car new and have driven about 4,500 km (2,800 miles) so far. I recently changed the differential gear oil for the first time.

Ford recommends using Motorcraft XL-13 friction modifier for the LSD. However, this time I used Moty’s M502 differential gear oil from Japan.

According to Moty’s, M502 already contains friction modifiers and is suitable for LSD applications, so I decided not to add any additional XL-13.

I can’t say the difference after the oil change was dramatic, but the drivetrain does seem to feel slightly smoother and more refined when transferring power.

I’m curious — what differential gear oil are you guys using in your Mustang GTs?

I really enjoy trying different oils and doing little experiments with my car, so if you recommend something that I can actually get here in South Korea, I’d be happy to give it a try! Haha.

Thanks in advance for your recommendations!

S650 Mustang changed the differential gear oil DSC07187


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S650 Mustang changed the differential gear oil DSC07207


S650 Mustang changed the differential gear oil DSC07179


S650 Mustang changed the differential gear oil DSC07212
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