The 2012 Land Rover LR4 is a capable luxury SUV that pairs a powerful 5.0-liter V8 engine with an advanced all-wheel-drive system designed for both on-road comfort and off-road adventure. However, the performance of this sophisticated vehicle relies heavily on the quality of the fluids that keep its mechanical components moving smoothly. Using the correct specifications and high-performance synthetic lubricants is essential to maintain the engine’s longevity, ensure precise transmission shifts, and protect the cooling system from extreme thermal loads. For owners of the LR4 with the 5.0L 8-cylinder engine code [D] D, adhering to the precise fluid capacities and types is a key part of responsible vehicle maintenance.
Recommended AMSOIL Products
- AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil – The primary recommendation for the 2012 LR4, this oil provides exceptional protection against horsepower loss and wear, meeting the specific viscosity requirements for all operating temperatures.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Ideally suited for the 6HP28 transmission, this fluid withstands heavy towing and elevated temperatures while maintaining fluidity in sub-zero conditions.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – A top-tier alternative for the automatic transmission, offering superior protection against wear and extending the service life of the drivetrain.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – Recommended for both front and rear differentials to control thermal runaway and protect against rust and corrosion in demanding off-road scenarios.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – A high-performance fluid designed for excellent ABS and traction-control responsiveness, ensuring stable viscosity across a wide temperature range.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A ready-to-use 50/50 pre-mix formulation that protects all cooling system metals, gaskets, and hoses, exceeding original equipment requirements.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated option requiring mixing with water, offering extended protection up to 150,000 miles or 5 years for passenger cars and light trucks.
- AMSOIL P.i.® Performance Improver Gasoline Additive – A potent additive that restores horsepower and cleans GDI fuel injectors, helping to maintain fuel economy and engine performance.
Engine Oil and Filter Specifications
The heart of the 2012 Land Rover LR4 is the 5.0-liter 8-cylinder engine, designated as engine code [D] D. This powerplant requires a specific viscosity grade to operate efficiently across varying climates and driving conditions. For this vehicle, AMSOIL recommends the use of 5W-20 viscosity motor oil. This grade ensures optimal flow during cold starts while maintaining a stable film strength at high operating temperatures, which is crucial for the longevity of the V8 engine.
When performing an oil change, it is critical to adhere to the manufacturer’s specified capacity to ensure proper lubrication without overfilling. The 2012 LR4 5.0L engine requires 8.5 quarts of oil when a filter replacement is included in the service. After refilling, it is imperative to check the oil level manually to confirm the correct volume has been added. The oil drain plug should be torqued to 18 ft/lbs to ensure a secure seal without damaging the threads. Using a high-quality synthetic oil like AMSOIL Signature Series 5W-20 provides 75% more engine protection against horsepower loss and wear compared to conventional oils. This synthetic formulation is engineered to last up to 25,000 miles or one year under normal driving conditions, offering extended protection for drivers who travel long distances or engage in heavy towing.
While no specific oil filter recommendation is available in the fitment data, selecting a high-efficiency filter to pair with the synthetic oil is a best practice for maintaining peak engine performance. The combination of AMSOIL’s synthetic base oils and advanced additive packages ensures that the engine remains clean and protected from sludge, varnish, and acid formation, regardless of the driving style.
Transmission Fluid Requirements
The automatic transmission in the 2012 LR4, specifically the 6-speed 6HP28 unit, operates under significant stress. Whether navigating steep off-road terrain, towing heavy loads, or enduring stop-and-go traffic, the transmission fluid must maintain its viscosity and lubricating properties to prevent wear. AMSOIL recommends the use of either the Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid or the OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid.
For a total fill procedure, the capacity of the 6HP28 transmission is 10.5 quarts. Both fluid options are designed to withstand the rigors of heavy towing and elevated temperatures while remaining fluid in sub-zero conditions. The Signature Series fluid is particularly beneficial for those who push their vehicle to its limits, as it provides reserve protection during heavy use and abuse. The OE version offers comparable protection with a focus on fuel efficiency and wear prevention. Using these fluids helps minimize transmission drag, improve shift quality, and extend the service life of the transmission components.
Cooling System and Coolant Capacities
Maintaining the cooling system is vital for the 5.0L V8 engine, which generates substantial heat. The coolant capacity varies slightly depending on whether the vehicle is equipped with a rear heater. For the base configuration, the system holds 11.4 quarts of coolant. If the vehicle is equipped with a rear heater, the capacity increases to 14.1 quarts.
For this application, AMSOIL offers two distinct coolant solutions: the Passenger Car & Light Truck Antifreeze & Coolant and the Propylene Glycol Antifreeze and Engine Coolant. The standard Antifreeze & Coolant is a 50/50 pre-mix formulation that is ready to pour into the radiator. It features a unique poly-organic acid (OAT) technology that is phosphate-, nitrate-, nitrite-, silicate-, borate-, and amine-free, making it compatible with all other antifreeze colors and safe for all cooling system metals, gaskets, and hoses. It offers protection for up to 150,000 miles or 5 years.
The Propylene Glycol version is a concentrated fluid that requires mixing with distilled or high-quality water before use. This option offers even greater thermal stability and is suitable for extreme operating conditions. It protects against corrosion and erosion and can last up to 150,000 miles or 5 years in passenger cars and light trucks. Both options exceed OEM requirements and help prevent the cooling system from overheating, which is critical for preserving the integrity of the engine and head gasket.
Differential and Gear Lubrication
The Land Rover LR4 features both front and rear differentials that require high-performance gear lubrication, especially given the vehicle’s four-wheel-drive capabilities. The front differential (GLS24) requires a capacity of 1.3 pints, while the rear differential (Open GLS24) requires 2.5 pints.
For these demanding applications, AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube is the recommended choice. This gear lube provides advanced protection against wear and helps control thermal runaway, a common issue in high-load differentials. It contains friction modifiers specifically designed for limited-slip applications, ensuring smooth operation. The fluid protects against rust and corrosion and helps reduce operating temperatures, extending the life of the oil, seals, and equipment. Applying this synthetic gear lube ensures that the differentials remain lubricated and protected, regardless of whether the vehicle is on the highway or tackling rugged trails.
Brake Fluid and Performance Additives
The braking system on the LR4 relies on hydraulic fluid to transfer force from the pedal to the brake calipers. The recommended fluid is AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid. This fluid offers excellent responsiveness for ABS and traction control systems, providing a stable viscosity over a wide temperature range. Unlike conventional brake fluids, the synthetic formulation resists boiling points and does not absorb moisture as quickly, ensuring consistent braking performance and safety.
To further enhance engine performance, AMSOIL P.i.® Performance Improver Gasoline Additive is highly recommended. This additive is designed to restore horsepower and clean GDI fuel injectors to 100% flow rate after just one tank of fuel. It improves fuel economy and helps prevent carbon rap and pre-ignition knock, making it an excellent choice for maintaining the efficiency of the 5.0L engine over the long term.
About the Vehicle
The 2012 Land Rover LR4 represents a significant chapter in the history of British off-road engineering. As the third generation of the Range Rover L-series, it was built on a unibody platform that blended the rugged capability of a traditional off-roader with the comfort and refinement expected of a luxury SUV. Powered by a naturally aspirated 5.0-liter V8 engine, the LR4 delivered robust power and smooth acceleration, capable of towing substantial loads while maintaining a composed ride quality on paved roads.
Owners of the 2012 LR4 often appreciate its versatility. The vehicle is equipped with sophisticated air suspension and an active differential system that allows for precise control in various terrains. Its design emphasizes both aesthetic appeal and functional utility, featuring a spacious interior, advanced technology for its time, and a reputation for handling challenging environments with ease. The LR4’s enduring popularity among enthusiasts stems from its ability to serve as a daily driver that can also tackle serious off-road adventures. While it is a complex vehicle requiring precise maintenance, the rewards of owning an LR4 include a driving experience that combines luxury with genuine adventure capabilities. Regular maintenance with high-quality fluids ensures that this powerful machine continues to perform as intended, preserving its value and reliability for years to come.