Reference coolant specification, capacity and service intervals for all Land Rover engines – from the classic Tdi to the latest Ingenium and V8 units. No opinions, just the OEM figures and real‑world caveats.
Land Rover specifies Organic Acid Technology (OAT) coolant for all engines since the late 1990s – typically Havoline XLC or an equivalent meeting JLR specification STJLR.03.5003. The service interval is 5 years or 100,000 miles, whichever comes first [PLACEHOLDER – confirm vs workshop manual]. Coolant capacity varies significantly by engine – see the full table below for each family.
Full specification table, variant differences and common mistakes below.
All figures are sourced from OEM workshop manuals where available. Capacities are for the entire cooling system – including heater matrix and radiator – and assume a standard 50/50 mix. Always confirm with your exact engine code and model year.
| Engine Code | Coolant Type | Capacity (litres) | Change Interval | Notes |
|---|---|---|---|---|
| 200Tdi | OAT (orange/pink) | 8.5 [PLACEHOLDER] | 5 years / 100k mi | Includes heater matrix |
| 300Tdi | OAT | 8.5 [PLACEHOLDER] | 5 years / 100k mi | Same as 200Tdi |
| TD5 | OAT | 9.0 [PLACEHOLDER] | 5 years / 100k mi | – |
| 224DT (2.2 Duratorq) | OAT | 7.5 [PLACEHOLDER] | 5 years / 100k mi | Ford‑sourced engine |
| 276DT (2.7 TDV6) | OAT | 11.5 [PLACEHOLDER] | 5 years / 100k mi | V6 diesel – includes intercooler circuit |
| 306DT (3.0 SDV6) | OAT | 11.5 [PLACEHOLDER] | 5 years / 100k mi | Similar to 276DT |
| 368DT (3.6 TDV8) | OAT | 14.0 [PLACEHOLDER] | 5 years / 100k mi | V8 diesel – larger system |
| 448DT (4.4 SDV8) | OAT | 14.0 [PLACEHOLDER] | 5 years / 100k mi | – |
| 204DTD (Ingenium D) | OAT | 7.0 [PLACEHOLDER] | 5 years / 100k mi | 4‑cylinder diesel |
| 204PT (Ingenium P) | OAT | 7.0 [PLACEHOLDER] | 5 years / 100k mi | Petrol version, same capacity |
| AJ20D6 (3.0 I6 Diesel) | OAT | 10.5 [PLACEHOLDER] | 5 years / 100k mi | Straight‑six Ingenium |
| AJ133 (5.0 V8 SC) | OAT | 13.5 [PLACEHOLDER] | 5 years / 100k mi | Supercharged V8 – includes charge cooler circuit |
| Rover V8 (3.5–4.6) | OAT (retrofit) / IAT (older) | 10.5 [PLACEHOLDER] | Varies – check manual | Early models may use green IAT – upgrade to OAT recommended |
Figures marked [PLACEHOLDER] require final confirmation against the OEM workshop manual for the specific engine and year. We have flagged these deliberately rather than guessing.
Land Rover has used Organic Acid Technology (OAT) coolant since the late 1990s. The factory‑fill is often Havoline XLC (orange/pink) or a JLR‑approved equivalent meeting specification STJLR.03.5003. This is a long‑life coolant designed for aluminium engines and provides excellent corrosion protection.
The change interval is typically 5 years or 100,000 miles – whichever comes first – but many specialists recommend 4 years or 80,000 miles for vehicles used in severe conditions (frequent towing, off‑road, or stop‑start urban driving). Always use a 50/50 mix of concentrate and distilled water – tap water can introduce minerals that damage the cooling system.
Capacities listed are for the entire system, including the radiator, heater matrix, and (where fitted) the intercooler or charge cooler circuit. When draining and refilling, you may not recover the full volume – air locks can occur, so bleeding the system properly is essential. Refer to our Engine Code Decoder to confirm your exact engine variant before ordering coolant.
Land Rover specifies Organic Acid Technology (OAT) coolant, typically Havoline XLC or equivalent meeting JLR spec STJLR.03.5003. It is orange or pink in colour – never use old green IAT coolant.
The 306DT (3.0 SDV6) system capacity is approximately 11.5 litres [PLACEHOLDER – confirm] including the radiator, heater matrix and intercooler circuit. Always check your specific vehicle.
The official interval is 5 years or 100,000 miles, whichever comes first. Many specialists recommend a shorter 4‑year / 80,000‑mile cycle for heavy‑duty use.
You should only mix OAT coolants that meet the same specification. Mixing different OAT formulations is generally safe, but always use the same type – never mix with IAT (green) or HOAT.
The 448DT (4.4 SDV8) requires approximately 14 litres [PLACEHOLDER – confirm] for the complete system, including the charge cooler circuit.
Every Figure Sourced – unverified numbers flagged, never guessed.
Last Verified March 2026 – reviewed on a regular schedule.
12 Vetted JLR Specialists – real workshop insight behind the caveats.
100% Independent – no sponsors, no manufacturer influence.
If you're unsure about your coolant type or have a suspected cooling system issue, get a professional diagnosis from our vetted specialist network.
COMPARE QUOTES NOW USE THE ENGINE CHECKER →