Keeping your 2018 Land Rover Range Rover Sport 3.0L performing at its peak requires a maintenance regimen that matches the precision engineering of the vehicle. This luxury SUV is equipped with a turbocharged engine that operates under significant thermal and mechanical stress, making the quality of lubricants critical for longevity. Using the correct fluids not only protects expensive internal components but also ensures the sophisticated all-wheel-drive system and transmission function smoothly under a variety of driving conditions, from city commuting to off-road exploration. Selecting the right products can help mitigate common issues such as high heat buildup and carbon accumulation, keeping the vehicle reliable and responsive.
Recommended AMSOIL Products
- AMSOIL 0W-20 LS 100% Synthetic European Motor Oil – Engineered for the unique demands of European vehicles, this oil provides precise protection against sludge and wear while maintaining fluidity in extreme temperatures.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Delivers superior protection for the 8-speed transmission against the rigors of heavy towing, elevated temperatures, and challenging terrain.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – An excellent alternative formulated to protect against wear and maintain performance in severe driving conditions.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – Provides advanced protection for front and rear differentials, controlling thermal runaway and reducing operating temperatures for extended equipment life.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Ensures excellent ABS and traction-control responsiveness with a stable viscosity over a wide temperature range.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A pre-mixed formulation that protects all cooling system metals, gaskets, and hoses while exceeding OEM requirements.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated option that offers extended protection up to 150,000 miles or 5 years for passenger cars and light trucks.
- AMSOIL P.i.® Performance Improver Gasoline Additive – Restores fuel injectors to 100% flow rate and improves fuel economy, helping to maintain the efficiency of the direct injection system.
- WIX Cabin Air Filters – Features premium media that offers improvements over original equipment manufacturer filters for better air quality inside the cabin.
Engine Oil and Maintenance Specifications
The heart of your 2018 Range Rover Sport is the 3.0L 6-cylinder engine, which operates under the demanding conditions typical of a luxury performance SUV. For the motor oil, the manufacturer specifies a viscosity grade of 0W-20 for all temperature ranges. The total fluid capacity for an oil change, including the filter replacement, is 8.5 quarts. Proper oil selection is vital because the turbocharged engine generates significant heat and stress on the piston rings and cylinder walls. Using a high-quality synthetic oil is the most effective way to prevent oil consumption and sludge buildup, which are common concerns in this engine family. After refilling, it is crucial to check the oil level to ensure it is within the correct operating range. The oil drain plug requires a torque specification of 17 ft/lbs. When performing this maintenance, it is best practice to discard the old drain plug and install a new one to guarantee a secure seal and prevent leaks.
Transmission and Drivetrain Protection
The Range Rover Sport relies on a sophisticated 8-speed automatic transmission (model 8HP70) to manage power delivery to both the front and rear axils. This complex component requires a transmission fluid that can withstand the rigors of shifting under load and the high temperatures generated during towing or spirited driving. For the automatic transmission, the total fill capacity is 9 quarts. AMSOIL offers two primary options for this application. The Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid is designed to withstand heavy towing and elevated temperatures while remaining fluid in sub-zero conditions. Alternatively, the OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid provides robust protection against wear for drivers who prefer a specification closely aligned with original equipment standards. Both options are formulated to protect the transmission from sludge and temperature-related failures.
For the drivetrain, the front differential requires a capacity of 1.1 pints, while the open rear differential requires 1.7 pints. Both units utilize GLS24 specifications for all temperatures. AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube is the recommended lubricant for these components. This fluid contains friction modifiers for limited-slip applications and helps control thermal runaway, ensuring the gears and bearings remain cool and protected. The product also protects against rust and corrosion, extending the life of the seals and the equipment itself. By maintaining the correct levels and using premium lubricants, owners can prevent the noise and wear that often lead to costly differential repairs.
Cooling System and Brake Fluid Requirements
Maintaining the cooling system is essential to prevent the engine from overheating, especially given the turbocharger’s contribution to thermal load. The coolant capacity varies depending on the specific configuration of the vehicle’s climate control system. For models equipped with a 4-zone AC and fuel heater, the capacity is 10.4 quarts. Vehicles with a 2-zone AC and fuel heater require 8.7 quarts, while those with 2-zone AC alone require 8.5 quarts. AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a pre-mixed, ethylene glycol 50/50 formulation that protects all cooling system metals, gaskets, and hoses. It is free of phosphates, nitrates, nitrites, silicates, borates, and amines, ensuring compatibility with all vehicle colors and materials. For those who prefer a concentrated option, AMSOIL Propylene Glycol Antifreeze and Engine Coolant offers extended protection up to 150,000 miles or 5 years.
Brake safety is non-negotiable in a vehicle of this size and performance level. Land Rover recommends the use of their specific brake fluid, but if unavailable, a low viscosity DOT 4 fluid meeting ISO 4925 Class 6 requirements may be used. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is an excellent choice, offering excellent responsiveness for ABS and traction control systems. Its stable viscosity over a wide temperature range ensures consistent braking performance whether you are in a stop-and-go city commute or a high-speed drive.
Fuel System Care and Additives
Modern direct injection (GDI) engines, like the one in the Range Rover Sport, are prone to carbon buildup on intake valves and injectors, which can degrade performance and fuel economy. To combat this, AMSOIL P.i.® Performance Improver Gasoline Additive is highly recommended. This additive restores fuel injectors to 100% flow rate after a single tank of fuel, helping to prevent carbon rap and control pre-ignition knock. It can also improve fuel economy and reduce the need for higher-octane fuel. Additionally, for vehicle owners who store their Range Rover Sport for seasonal periods, AMSOIL Gasoline Stabilizer can keep fuel fresh for up to 12 months, protecting against varnish and gum buildup caused by ethanol corrosion.
About the Vehicle
The 2018 Land Rover Range Rover Sport is a formidable presence in the luxury SUV segment, blending the rugged capability of a dedicated off-roader with the refined comfort and on-road handling of a sports sedan. Built on the D7x architecture, this model represents a significant evolution in the brand’s lineup, offering a more dynamic driving experience than its larger sibling, the standard Range Rover. The 3.0L inline-six engine, available with both petrol and diesel options in various years, provides a potent mix of torque and efficiency, allowing the vehicle to accelerate with surprising agility despite its substantial weight. This specific configuration with the “P” engine code denotes the petrol variant, known for its smooth power delivery and responsive throttle.
Owners of the 2018 Range Rover Sport often appreciate its versatility. It serves as a competent family hauler, a luxury daily driver, and a capable trail conqueror, all in one package. The air suspension system, a hallmark of the Range Rover brand, contributes to a smooth ride that absorbs road imperfections effortlessly while also allowing for height adjustments to improve ground clearance when off-roading. The interior typically features high-quality materials, advanced infotainment systems, and spacious seating for up to five passengers, with a fold-flat rear cargo area for additional storage. The vehicle’s reputation is built on its ability to handle various terrains with confidence, thanks to its sophisticated terrain response system and permanent all-wheel-drive setup.
While the Range Rover Sport is a robust machine, like any complex modern vehicle, it can benefit from proactive maintenance to address specific areas of concern. One common issue in this generation of Land Rovers involves carbon buildup on the intake valves due to the direct injection system. Over time, this can lead to rough idling, reduced power, and increased fuel consumption. Regular use of a high-quality fuel system cleaner like AMSOIL P.i. can help mitigate this buildup and restore engine performance. Another area where owners may face challenges is the cooling system, which can be susceptible to coolant leaks or component failures if the coolant degrades or loses its anti-corrosion properties. Using a premium antifreeze like AMSOIL can help preserve the integrity of the cooling system components for extended periods. Additionally, the turbocharged engine can place stress on oil seals, potentially leading to oil consumption or minor leaks. An oil formulated to protect seals and resist thermal breakdown can help maintain proper oil levels and prevent premature wear. Finally, the sophisticated transmission and differential systems require fluids that can handle high thermal loads; failing to change these fluids at the recommended intervals or using inferior products can lead to shifting issues or premature wear. Consistent use of AMSOIL synthetic transmission and gear lubes helps protect these components from wear and extends their service life, ensuring the vehicle remains as capable as the day it left the factory.