Jeep Wrangler Gearbox & Transmission Problems
- Transmission
- Diesel
- Engine
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Wrangler needs a new gearbox
There's no reason to be putting oil in the gearbox, so the oil should still be the original factory fill. If you want you could drain a sample of the oil and have it analysed to identify what it is. I suspect the problem is related to its heavy off-road use rather than the wrong oil being used.