Land Rover Discovery
Data verified by Nick Marchenko, PhD
Maintaining the engine oil in your Land Rover Discovery is crucial for optimal performance and longevity. Depending on the engine option, the oil capacities vary: the 3.0HDi diesel engine requires 6.3 quarts of 5W-30 oil, while the 4.0L V8 petrol engine needs 7.4 quarts of the same viscosity. For the 4.6L V8, the capacity is slightly lower at 6.1 quarts, and the AJ126 engines, which are also petrol, require 8.5 quarts for the 2017-2019 models and 9.3 quarts for the 2021 variant, both using 0W-20 oil.
In addition to oil maintenance, it's important to monitor coolant levels, with capacities ranging from 10.5 to 17.3 quarts depending on the engine. Regular oil changes and checks can help prevent engine wear and ensure that your Land Rover Discovery continues to perform at its best, whether you own a model from 1999 or 2021.
Land Rover Discovery Oil Capacity
| Engine | Oil Capacity | Viscosity | Coolant | Years |
|---|---|---|---|---|
| 3.0HDi AJD-V6 Lion V6 The 3.0HDi engine has a displacement of 3.0L V-6. The power output is 241 hp with a torque of 369 lb-ft. | 6.3 qt | 5W-30 | 12.0 qt | 2020, 2019, 2018, 2017 |
| 4.0L V8 Rover 4.0L The 4.0L V8 engine has a displacement of 4.0L V-8. The power output is 190 hp with a torque of 236 lb-ft. | 7.4 qt | 5W-30 | 13.7 qt | 2001, 2000, 1999 |
| 4.6L V8 Rover 4.6L The 4.6L V8 engine has a displacement of 4.6L V-8. The power output is 225 hp with a torque of 280 lb-ft. | 6.1 qt | 5W-30 | 13.7 qt | 2004, 2003, 2002 |
| AJ126 AJ-V8 V6 The AJ126 engine has a displacement of 3.0L V-6. The power output is 335 hp with a torque of 332 lb-ft. | 8.5 qt | 0W-20 | 10.5 qt | 2019, 2018, 2017 |
| AJ126 AJ-V8 V6 The AJ126 engine has a displacement of 3.0L V-6. The power output is 335 hp with a torque of 332 lb-ft. | 9.3 qt | 0W-20 | 17.3 qt | 2021, 2020 |
Land Rover Discovery – Frequently Asked Questions
How many quarts of oil does the Land Rover Discovery take?
The Land Rover Discovery oil capacity varies by engine: 3.0HDi: 6.3 qt; 4.0L V8: 7.4 qt; 4.6L V8: 6.1 qt; AJ126: 8.5 qt; AJ126: 9.3 qt. Always confirm the exact capacity for your specific engine before an oil change.
What type of oil does the Land Rover Discovery use?
Oil viscosity depends on the engine: 3.0HDi, 4.0L V8, 4.6L V8: 5W-30; AJ126, AJ126: 0W-20. Check your owner's manual for the correct spec for your specific engine.
What is the coolant capacity of the Land Rover Discovery?
The coolant capacity for the Land Rover Discovery varies by engine: 3.0HDi: 12.0 qt; 4.0L V8: 13.7 qt; 4.6L V8: 13.7 qt; AJ126: 10.5 qt; AJ126: 17.3 qt. Use the coolant specification listed in the owner's manual for your engine variant.
What type of oil does the Land Rover Discovery use?
The Land Rover Discovery typically uses 5W-30 oil for the 3.0HDi and 4.0L V8 engines, while the AJ126 engines require 0W-20 oil.
How many quarts of oil does the Land Rover Discovery take?
Oil capacity varies by engine: the 3.0HDi takes 6.3 quarts, the 4.0L V8 takes 7.4 quarts, the 4.6L V8 takes 6.1 quarts, and the AJ126 engines take 8.5 quarts or 9.3 quarts depending on the model year.
How often should I change oil in a Land Rover Discovery?
It's generally recommended to change the oil in your Land Rover Discovery every 5,000 to 7,500 miles, but always refer to your owner's manual for specific guidelines based on your engine type.
What is the coolant capacity of the Land Rover Discovery?
Coolant capacity varies by engine: the 3.0HDi requires 12 quarts, the 4.0L V8 and 4.6L V8 both require 13.7 quarts, while the AJ126 engines need between 10.5 and 17.3 quarts.
Does the Land Rover Discovery need synthetic oil?
While synthetic oil is not strictly required, it is recommended for optimal performance, especially for the AJ126 engines that use 0W-20 oil.
What happens if I use the wrong oil viscosity in my Land Rover Discovery?
Using the wrong oil viscosity can lead to inadequate lubrication, increased engine wear, and potential overheating, which can severely damage the engine.
What is an oil life monitor and how does it work?
An oil life monitor tracks engine operating conditions and calculates when an oil change is necessary, helping to optimize maintenance intervals based on actual usage rather than a fixed schedule.
Can I mix synthetic and conventional oil?
While it's technically possible to mix synthetic and conventional oils, it's not recommended as it can reduce the benefits of synthetic oil and may lead to performance issues.
How do I know if my Land Rover Discovery has an oil leak?
Signs of an oil leak include oil spots under the vehicle, a drop in oil level, or warning lights on the dashboard. Regular inspections can help catch leaks early.
What causes excessive oil consumption?
Excessive oil consumption can be caused by worn engine components, such as piston rings or valve seals, and can also result from using the wrong oil viscosity.
Should I check my oil when the engine is hot or cold?
It's best to check your oil when the engine is warm but not hot, as this allows the oil to circulate and provide an accurate reading on the dipstick.
What is the difference between an oil change and a flush?
An oil change involves draining the old oil and replacing it with new oil, while an oil flush is a process that cleans the engine internals and removes sludge before adding new oil.