Defender L663 Recommended Oils and Lubricants

Engine-oil grades and specifications, automatic transmission fluid, transfer-case lubricant, differential oils and other fluid information for Defender L663 models.

Actual Specifications JLR oil standards included

Engine-Specific Petrol, diesel, hybrid and V8

Drivetrain Fluids Transmission, transfer case and axles

Model-Year Checks Specifications can change

Using the Defender L663 Lubricant Tables

Defender L663 models have been produced with four-cylinder and six-cylinder Ingenium engines, mild-hybrid systems, plug-in hybrid powertrains and two different V8 engine families.

Badges such as D200, D250, D300, D350, P300, P400, P425 and P525 do not always identify every technical difference. Confirm the fuel type, engine capacity, model year and VIN before ordering lubricant.

The complete JLR specification is as important as the SAE viscosity. An oil labelled 0W-20 is not suitable unless it also carries the specification required by the vehicle.

Information to confirm

Defender L663 Engine Oil

The table covers the common UK L663 powertrains. Check the VIN-specific handbook where an engine changed during a model-year transition.

Engine or derivative	Recommended viscosity	Required specification	Capacity and notes
2.0 Ingenium diesel Early D200 applications	0W-30	Jaguar Land Rover STJLR.03.5007	Confirm the handbook service-fill quantity. Fill gradually and check the electronic oil level after completing the specified procedure.
2.0 Ingenium petrol P300 and related applications	0W-20	Jaguar Land Rover STJLR.03.5006 or the earlier STJLR.51.5122 where explicitly stated in the handbook.	Use the specification listed for the exact model year. Do not substitute a generic 0W-20 oil.
3.0 Ingenium diesel MHEV D200, D250, D300 and D350 derivatives	0W-20	Jaguar Land Rover STJLR.03.5006	Low-SAPS oil suitable for the diesel particulate filter. Confirm the service-fill quantity and electronic level-check procedure.
3.0 Ingenium petrol MHEV P400 derivatives	0W-20	Jaguar Land Rover STJLR.03.5006	Confirm the model year before ordering, as the complete approval must appear on the lubricant container or technical data sheet.
2.0 plug-in hybrid petrol P400e and related PHEV applications	0W-20	Jaguar Land Rover STJLR.03.5006 where stated for the fitted petrol engine.	Confirm the precise PHEV derivative. The high-voltage system requires PHEV-specific workshop safety procedures.
5.0 supercharged petrol V8 P425 and P525 applications	0W-20	Check the handbook for STJLR.51.5122 or the later compatible STJLR.03.5006 requirement.	The V8 has a substantially different service quantity from the Ingenium engines. Use the V8-specific figure and electronic level check.
4.4 twin-turbo OCTA V8	Check VIN-specific information	Use only the exact current JLR specification listed for the 4.4-litre OCTA engine.	This engine is not the earlier 5.0-litre supercharged V8. Do not use the P425 or P525 specification without confirmation.

Specification warning: 0W-20 and 0W-30 describe viscosity only. The oil must also display the correct STJLR specification. A generic oil of the same viscosity may not provide the required emissions-system, wear, deposit or fuel-economy performance.

Eight-speed automatic transmission

Defender L663 Drivetrain Lubricants

These are specialist fluids. Do not fill the transfer case or active rear differential with a generic axle oil merely because the viscosity appears similar.

Component	Lubricant type	Selection notes	Filling notes
Transfer case	Dedicated JLR transfer-case fluid.	Match the fluid to the fitted transfer-case assembly and model year. Do not substitute ordinary 75W-90 differential oil.	Fill using the stated service quantity and level procedure for the component.
Front differential	JLR-approved fully synthetic hypoid axle oil.	Confirm the precise JLR axle-oil specification from the handbook or workshop information.	Use the level plug and official procedure rather than relying only on a quoted capacity.
Standard rear differential	JLR-approved synthetic hypoid axle oil.	Confirm that the vehicle has the standard rear differential before selecting lubricant.	Fill and level according to the standard differential procedure.
Electronic active rear differential	Dedicated active differential lubricant.	Do not use the standard rear differential oil without confirming that it is also approved for the electronically controlled unit.	Follow the active-differential workshop procedure and stated service quantity.

Cooling, braking and emissions systems

Engine coolant

Use premixed or correctly diluted coolant meeting the precise Jaguar Land Rover specification stated for the model year. Do not identify coolant solely by colour.

Brake fluid

Use the approved low-viscosity DOT 4 brake fluid stated in the handbook. Always use fluid from a new, sealed container.

Diesel exhaust fluid

Diesel models with selective catalytic reduction use diesel exhaust fluid meeting ISO 22241. Do not add it to the diesel fuel tank.

Electric power steering

Defender L663 uses electric power-assisted steering and does not have a conventional hydraulic steering-fluid reservoir for routine topping up.

Plug-in hybrid cooling systems

PHEV models have additional high-voltage components and cooling circuits. Use only the specified coolant and PHEV-specific bleeding procedure.

Screenwash

Use automotive screenwash mixed for the expected temperature. Do not use engine coolant or domestic detergent in the washer reservoir.

Important Defender L663 Checks

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Learn about viscosity grades, manufacturer approvals, engine-oil specifications, automatic transmission fluids and differential lubricants.

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