Choosing the correct lubricant is essential to protecting driveline components and maintaining optimal performance. This guide breaks down the recommended oils for gearboxes, differentials and transfer boxes, helping you match the right specification to your vehicle, driving style and operating conditions.
| Model | Component | Oil Type & Grade | Capacity (Litres) | Notes |
| Series I (1948–1958) | Front Diff | EP90 / SWEPCO 201 | 1.75 | |
| Rear Diff | EP90 / SWEPCO 201 | 1.75 | ||
| Gearbox | EP90 / SWEPCO 201 | 1.5 | ||
| Transfer Box | EP90 / SWEPCO 201 | 2.5 | ||
| Series II/III (1958–1985) | Front Diff | EP90 / SWEPCO 201 | 1.75 | |
| Rear Diff | EP90 / SWEPCO 201 | 1.75 | ||
| Gearbox | EP90 / SWEPCO 201 | 1.5 | ||
| Transfer Box | EP90 / SWEPCO 201 | 2.5 | ||
| Defender (1983–2016) | Front Diff | EP90 / SWEPCO 201 / 75/90 SWEPCO 202 | 1.75-2.5 | Use Mineral oil if ATB Fitted (EP90 / SWEPCO 201) |
| Rear Diff | EP90 / SWEPCO 201 / 75/90 SWEPCO 202 | 1.75-2.5 | Use Mineral oil if ATB Fitted (EP90 / SWEPCO 201) | |
| Gearbox R380 5 Speed | MTF94 / Swepco 712 | 2.4 | ||
| Gearbox MT82 6 Speed | 75w 90 /Swepco 202 | 2.2 | ||
| Transfer Box | EP90 / SWEPCO 201 / 75/90 SWEPCO 202 | 2.3 |
600ml extra required if HC Sump fitted. Use Mineral oil if ATB Fitted (EP90 / SWEPCO 201)
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| Discovery I (1989–1998) | Front Diff | EP90 / SWEPCO 201 / 75/90 SWEPCO 202 | 1.75-2.5 | Use Mineral oil if ATB Fitted (EP90 / SWEPCO 201) |
| Rear Diff | EP90 / SWEPCO 201 / 75/90 SWEPCO 202 | 1.75-2.5 | Use Mineral oil if ATB Fitted (EP90 / SWEPCO 201) | |
| Gearbox | MTF94 / Swepco 712 | 2.4 | ||
| Transfer Box | EP90 / SWEPCO 201 / 75/90 SWEPCO 202 | 2.3 |
600ml extra required if HC Sump fitted. Use Mineral oil if ATB Fitted (EP90 / SWEPCO 201)
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| Discovery II (1998–2004) | Front Diff | EP90 / SWEPCO 201 / 75/90 SWEPCO 202 | 1.75-2.5 | Use Mineral oil if ATB Fitted (EP90 / SWEPCO 201) |
| Rear Diff | EP90 / SWEPCO 201 / 75/90 SWEPCO 202 | 1.75-2.5 | Use Mineral oil if ATB Fitted (EP90 / SWEPCO 201) | |
| Gearbox | MTF94 / Swepco 712 | 2.4 | ||
| Transfer Box | EP90 / SWEPCO 201 / 75/90 SWEPCO 202 | 2.3 |
600ml extra required if HC Sump fitted. Use Mineral oil if ATB Fitted (EP90 / SWEPCO 201)
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