Bulkhead Workshop › Land Rover models › Range Rover P38 4.0 / 4.6 V8 › Workshop guide › Change gearbox & transfer box oil

Range Rover P38 4.0 / 4.6 V8: change gearbox & transfer box oil

Transmission · Range Rover P38 (1994–2002) · 1994–2002

How often: every 24,000 mi or 2 yrs, whichever comes first. Fresh oil keeps the synchromesh and transfer box bearings healthy.

Some of these intervals are more frequent than Land Rover's original schedule. That is deliberate for older vehicles.

Main gearbox	Automatic: ZF 4HP24 (4.0) or GM 4L80-E (4.6): ATF Dexron III, ≈9.7 L from dry · manual R380 (4.0): ≈2.7 L
Transfer box	Borg Warner 44-62 chain-drive box with viscous coupling, ≈2.3 L: use the fluid in your handbook (it is not the LT230 oil)

Work safely: support the vehicle on axle stands, never a jack alone; let it cool first. Check figures against your workshop manual. You do this work at your own risk.

Parts

Gearbox oil (Automatic: ZF 4HP24 (4.0) or GM 4L80-E (4.6): ATF Dexron III, ≈9.7 L from dry · manual R380 (4.0): ≈2.7 L)
Transfer box oil (Borg Warner 44-62 chain-drive box with viscous coupling, ≈2.3 L: use the fluid in your handbook (it is not the LT230 oil))
2 × Drain plug washers (if needed)

Tools

Spanners
Drain tray
Oil pump

Step by step

Drive to warm the oil. Drain the gearbox and transfer box.
Clean the magnetic drain plugs and look for chips.
Refill each to its level plug with the specified oil.

More Range Rover P38 4.0 / 4.6 V8 servicing

Engine oil & filter change every 12,000 mi or year
Air filter element every 12,000 mi or year
Plugs, leads & ignition timing every 12,000 mi or year
Fuel injection checks & fuel filter every 12,000 mi or year
Fan / auxiliary belt check every 12,000 mi or year
Coolant drain, flush & refill every 2 yrs
Grease propshafts every 6,000 mi or 6 months
Check gearbox, transfer & axle oil levels every 12,000 mi or year
Change front & rear axle oil every 24,000 mi or 2 yrs
Steering & power steering check every 12,000 mi or year
Inspect pads, discs & brake hoses every 12,000 mi or year
Adjust transmission handbrake every 12,000 mi or year
Brake & clutch fluid change every 2 yrs
Suspension bushes, arms & dampers every 12,000 mi or year
Wheel bearings & hub seals every 24,000 mi or 2 yrs
Automatic gearbox fluid & filter change every 24,000 mi or 2 yrs
Borg Warner transfer box & viscous coupling check every 24,000 mi or 2 yrs
Air suspension check (EAS) every 12,000 mi or year
Chassis & bulkhead inspection, rust-proofing every year
Annual safety inspection every year
Monthly walk-round checks every month

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