Ravenol MZG 80W-90 GL-4 LT230 Transfer Box Oil – 1L
Ravenol MZG 80W-90 GL-4 gear oil for LT230 transfer boxes in Defender, Discovery 1, Discovery 2 and Range Rover Classic models. GL-4 matters here: the LT230 contains yellow-metal components, and a generic GL-5 axle oil is not the correct substitute.
- Recommended for Land Rover LT230 transfer box servicing
- SAE 80W-90 mineral EP gear oil meeting API GL-4 and MIL-L-2105 D
- Protects the gears without the aggressive GL-5 additive level that can attack brass and other yellow metals
- 1L bottle – Ravenol article number 1223105-001
GL-5 is not an upgrade from GL-4 for the LT230. Use MZG in the transfer box and reserve 80W-90 GL-5 oil for standard Rover differentials.
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Description
Ravenol MZG SAE 80W-90 GL-4 is our recommended oil for the Land Rover LT230 transfer box. This mineral extreme-pressure gear oil combines the correct 80W-90 viscosity with the API GL-4 specification needed for the LT230, providing a pressure-resistant lubricating film, wear protection and oxidation stability without treating GL-5 as a supposedly better substitute. Supplied in a 1L bottle.
Why We Recommend Ravenol MZG for the LT230
The GL number is not simply a quality ranking. GL-5 axle oils use a different and generally stronger extreme-pressure additive system for heavily loaded hypoid differential gears. That additive chemistry can attack brass and other yellow-metal components, making a generic GL-5 differential oil unsuitable for an LT230 merely because it also carries an 80W-90 viscosity grade.
Ravenol MZG is a dedicated API GL-4 oil with good load-carrying capacity, anti-wear protection, stable viscosity across operating temperatures and resistance to foaming. Ravenol also describes the formulation as neutral to metals and sealants, making it properly matched to the transfer box rather than selected from viscosity alone.
Vehicle and Transfer Box Use
- Defender models fitted with the LT230 transfer box
- Discovery 1 models fitted with the LT230 transfer box
- Discovery 2 LT230 transfer boxes
- Range Rover Classic models fitted with the LT230 transfer box
Use Ravenol MZG for the LT230 transfer box. Standard Rover differentials require GL-5 oil, while manual gearboxes such as the R380 use their own specified gearbox fluid. The vehicle may therefore require several different oils across the gearbox, transfer box and axles.
Specifications, Approvals and Recommendations
- Viscosity: SAE 80W-90
- Specifications: API GL-4; MIL-L-2105 D
- Oil type: Mineral
- Approvals: ZF TE-ML 16A (ZF001109); ZF TE-ML 17A (ZF001109); ZF TE-ML 19A (ZF001109)
- Recommendations: DTFR 13B100 (MB 235.1); Ford SQM-2C-9008 A; MAN 341 E1; MAN 341 Z1; MB 235.1; MB 235.14; ZF TE-ML 02B
Technical Data
| Property | Unit | Data | Audit |
|---|---|---|---|
| Colour | gelbbraun | VISUELL | |
| Viscosity at 100 °C | mm²/s | 14,0 | DIN 51659-2 |
| Viscosity at 40 °C | mm²/s | 126,9 | DIN 51659-2 |
| Viscosity Index VI | 108 | DIN ISO 2909 | |
| Brookfield Viscosity at -26 °C | mPa*s | 45.600 | ASTM D2983 |
| Copper Strip Test at 121 °C | 1b | ASTM D130 | |
| Density at 20 °C | kg/m³ | 879,0 | EN ISO 12185 |
| Flashpoint | °C | 244 | DIN EN ISO 2592 |
| Pourpoint | °C | -33 | DIN ISO 3016 |
Transfer Box and Differential Oils
For standard Rover differentials, use Ravenol EPX 80W-90 GL-5 differential oil. The wider Land Rover gear oil section covers gearbox, transfer box and differential oils by component and specification.
Additional information
| Weight | 1 kg |
|---|---|
| Dimensions | 20 × 10 × 7 cm |
Brand
Brand
Ravenol
Ravenol oils and fluids for Land Rover servicing
Ravenol is a quality-led lubricant range for Land Rover engine, gearbox, transfer box, axle, steering, ACE, brake and cooling-system service work. Use this page to browse the Ravenol products we stock for Defender, Discovery, Freelander and Range Rover applications. Oil and fluid choice should be matched to the vehicle, component and required specification, not just the viscosity printed on the bottle. Check the product page for the relevant approvals, GL rating, application notes and Land Rover use before ordering.- For engine service work, see Land Rover engine oil, including VW 505.01 engine oil ideal for Td5 applications.
- For gearboxes, transfer boxes and axles, see Land Rover gear oil.
- For automatic gearboxes, power steering and related hydraulic fluids, see ATF and steering fluid.
- For brake servicing, see Land Rover brake fluid.
- For cooling-system work, see Land Rover antifreeze and coolant.
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Delivery
Twinwoods 4x4 ships Land Rover parts across the UK and around the world. We regularly send parts overseas and use trusted tracked courier services so UK and international customers can order with confidence.
Standard UK shipments are normally sent with DPD. UK orders containing oils or fluids are normally sent with DHL where required, because some carriers restrict liquid shipments.
Worldwide delivery is available through DPD and DHL Express, depending on the destination, parcel size, weight and available courier services. Add the parts you need to your basket, enter your delivery address, and the checkout will show the available delivery options and prices before payment.
Free mainland UK postage and packaging is available on eligible orders over £99, subject to our delivery terms and conditions.
Returns
14-day returns
Unopened & unused
Faulty? We cover postage
- Return within 14 days of delivery of your order.
- Items must be unused, unopened and in original packaging.
- Faulty items: we’ll cover return postage—keep your receipt.
- Refunds & Replacements are dealt with once the original item is received and inspected.
Non-returnable: non-stock/order in/special orders and genuine Land Rover parts (unless faulty).
Returns – quick FAQs
How long do I have to return an item?
14 days from receipt of your order.
Who pays return postage?
We cover it if the item is faulty—please keep your postage receipt.
What items are non-returnable?
Non-stock/special orders and genuine Land Rover parts (unless faulty).
How do I start a return?
Contact us
Please include your order number and a brief reason for the return.
Warranty
Buy with confidence: all new parts sold by Twinwoods 4x4 include at least 12 months manufacturer warranty against defects in materials and workmanship under normal use.
Some products and brands may include a longer warranty period where this is provided by the manufacturer. Where applicable, this will normally be stated on the individual product page or covered by the manufacturer’s own warranty terms.
Warranty cover applies to manufacturing defects. It does not cover misuse, incorrect fitting, competition use unless stated, contamination, modification, damage during installation, normal wear and tear, or failure caused by an unrelated vehicle fault. For certain components, proof of professional fitment may be required.
Warranty claims may require the part to be returned for inspection and/or supplier testing before the claim is accepted. Any advance replacement is discretionary.
Warranty remedies relate to the part itself, meaning repair or replacement, or refund if those are not possible. Warranty does not cover labour, removal or refitting, diagnostics, consumables, travel or other incidental costs.
This warranty is in addition to your legal rights and does not reduce those rights.
For full details, please see our Terms and Conditions.
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