| Engine oil & filter | API SG, SAE 10W-40 or 10W-50 · ≈6.7 L (1991 3.9 V8 data). Later 3.9/4.2: confirm in manual | At purchase, then every 3,000–5,000 mi | These engines aren't fussy about oil brand; Hagerty UK's specialist uses about 7 L of 20W-50 every 6,000 miles or 12 months. A fresh filter matters. The ERR3340 filter covers the RRC, P38 and Defender V8s.Genuine oil filter ERR3340 (RRC / P38 / Defender V8) · Lucky8 ↗Sump drain plug washers (V8, set of 10) · Lucky8 ↗ |
| Air filter | OE-type element | At purchase | Check the airbox dump valve and the intake hoses for splits. Unmetered air upsets the Lucas/GEMS fuelling.RTC4683 Mahle air filter (RRC V8) · Lucky8 ↗ |
| Fuel filter | OE-type EFI filter confirm in manual | At purchase | Old fuel lines and rusty tanks are common on trucks that have sat. Inspect the rubber lines while you're under there.Range Rover Classic EFI fuel filter · Rovers North ↗ |
| Spark plugs & ignition | Plug type and gap per manual confirm in manual | At purchase if there's no record | Fit new plugs, leads, a distributor cap and rotor as a set. Tired leads cause a lot of rough running on these V8s.Range Rover Classic V8 spark plugs and leads · Rovers North ↗ |
| Coolant | 50/50 ethylene glycol antifreeze and water · ≈11.4 L | At purchase, then every 2 years | Replace the hoses and thermostat at the same time. Check the viscous fan and the radiator core. See the cooling refresh in the repairs above.ETC4765 V8 thermostat · Lucky8 ↗STC483 water pump (EFI V8 Defender / RRC) · Lucky8 ↗ |
| Automatic transmission (ZF 4HP22 / 4HP24) | Dexron IID ATF · ≈9.5 L total fill (1991 data) | Drain and refill at purchase | A pan drain only exchanges part of the fluid. Do two drain-and-fills and change the pan filter rather than pressure-flushing an unknown box.ZF 4HP22 / 4HP24 filter and pan gasket · Rovers North ↗ |
| Transfer box | Borg Warner chain case: Dexron IID ATF (M2C33G / Texaco 4291 also listed) · ≈1.7 L. Gear-driven LT230 trucks: EP90 GL-4/5 · ≈2.3 L | At purchase | Do the jacked-wheel viscous-coupling test while you're under the truck (see repairs). A seized coupling causes driveline wind-up on tight turns.Range Rover Classic transfer box drain/fill plugs and seals · Rovers North ↗ |
| Front & rear axles | 80W/90 EP gear oil, API GL-4 or GL-5 · ≈1.7 L each | At purchase, then every 2 years | Fill to the level plug on level ground. Pinion seal weeps are common on old trucks.Range Rover Classic differential drain/fill plugs · Rovers North ↗ |
| Swivel housings | Gear oil 90 EP/80W EP · ≈0.33 L per side (1991 data), or one-shot swivel grease STC3435 on later trucks | Check at purchase and at every service | Lucky8 lists the STC3435 sachet for the RRC ('87–'95). Owners regrease when they fit new seals (see repairs). Oil on the chrome ball means it's time for a seal.Swivel housing grease sachet STC3435 · Lucky8 ↗Front axle swivel ball oil seal LR059968 · Lucky8 ↗ |
| Power steering | Dexron IID ATF · ≈2.8 L system | Check at purchase | Leaks from the steering box are common, so watch the reservoir level for a few weeks.Range Rover Classic power steering hoses and seals · Rovers North ↗ |
| Brake fluid | DOT 4 | At purchase, then every 2 years | ABS trucks (from about 1990) have a pump and accumulator. Bleed per the manual and check that the pump doesn't run constantly.Range Rover Classic brake hoses · Rovers North ↗ |
| Air suspension (1993–95 LWB / air trucks) | No fluid. Leak-check the springs, valve block, compressor and reservoir confirm in manual for dryer service | At purchase | An overnight sag at one corner or a compressor that runs constantly means there's a leak. Many owners convert to coils (see repairs).Range Rover Classic air suspension parts · Rovers North ↗ |
| Propshafts & UJs | Multipurpose lithium grease | At purchase, then at every service | Grease the UJs and sliding joints. A clunk on take-up usually means a dry UJ.Range Rover Classic propshaft universal joints · Rovers North ↗ |