Maintaining the 2018 Land Rover Discovery with its 3.0L V6 supercharged engine requires precision and the use of high-quality lubricants designed to handle the specific demands of this sophisticated vehicle. The engine code [V] V operates under significant thermal stress and requires a fluid that maintains viscosity and provides superior protection against wear. Using the correct AMSOIL 0W-20 LS 100% Synthetic European Motor Oil ensures that your Discovery runs smoothly, whether you are navigating city streets or tackling off-road trails. Proper fluid selection is not just about meeting manufacturer specifications; it is about exceeding them to maximize engine life and performance.
Recommended AMSOIL Products
- AMSOIL 0W-20 LS 100% Synthetic European Motor Oil – This is the specific viscosity and formulation required for the 2018 Discovery’s 3.0L V6. It features a European formula with precise blends of synthetic base oils and premium additives to protect against turbocharger stress and sludge.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Designed for the 8HP45 transmission, this fluid withstands heavy towing and elevated temperatures while remaining fluid in sub-zero conditions to protect against wear and sludge.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A 50/50 pre-mix formulation that protects all cooling system metals, gaskets, and hoses, ensuring your engine operates within safe temperature ranges in any season.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – Provides advanced protection for the front and rear differentials, controlling thermal runaway and reducing operating temperatures while protecting against rust and corrosion.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Meets Land Rover specifications and DOT 4 ISO 4925 Class 4 standards, offering excellent ABS responsiveness and a stable viscosity over a wide temperature range.
The 2018 Land Rover Discovery represents a pinnacle of modern luxury SUV engineering, combining robust off-road capability with on-road refinement. Powered by the Ingenium 3.0L supercharged V6 engine, this vehicle delivers a seamless blend of power and efficiency that has become a hallmark of the Discovery lineup. The engine produces substantial horsepower and torque, allowing the Discovery to climb challenging terrain with ease while providing a smooth, refined driving experience on highways. The platform is renowned for its advanced air suspension system, which allows drivers to adjust ride height for various conditions, from low ground clearance on paved roads to maximum articulation during off-roading.
Owners of the 2018 Discovery often cite its exceptional versatility as its greatest asset. The vehicle is designed to accommodate up to seven passengers, making it a popular choice for families who require space without sacrificing performance. The interior is crafted with high-quality materials, featuring intuitive technology interfaces that keep drivers connected while navigating complex trails or busy commutes. The all-terrain capability of the Discovery is supported by a sophisticated all-wheel-drive system and Terrain Response technology, which automatically adjusts vehicle settings based on the driving surface.
Despite its reputation for durability, the Discovery is not without its maintenance needs. The 3.0L V6 engine, while powerful, can experience issues related to carbon buildup in direct injection engines, particularly if used primarily for short trips. AMSOIL synthetic oils and AMSOIL P.i. Performance Improver can help mitigate this issue by cleaning fuel injectors and reducing carbon accumulation, restoring horsepower and improving fuel economy. Additionally, the complex air suspension system can be prone to wear over time; using appropriate synthetic lubricants in various components can help preserve seals and prevent leaks. Transmission fluid degradation is another concern, as the 8HP45 transmission can suffer from heat-related stress. Using a high-performance synthetic fluid helps maintain fluid integrity, preventing sludge and ensuring smooth shifts. Finally, the cooling system requires protection against overheating, especially during off-road excursions. A high-quality antifreeze ensures the cooling system remains free of rust and corrosion, preventing costly damage to the engine and radiator.
Engine Specifications and Capacities
When performing maintenance on your 2018 Land Rover Discovery, adhering to the correct fluid capacities is crucial for optimal performance. For the engine, the 3.0L V6 requires 8.5 quarts of oil, including the filter replacement. This capacity ensures that all internal components are properly lubricated after an oil change. It is essential to check the oil level after refilling and torque the oil drain plug to 18 ft/lbs to prevent leaks. The vehicle offers two different coolant capacities depending on the configuration: 10.5 quarts for vehicles with a 4-zone air conditioning system and a front floor bulkhead, 8.6 quarts for those with a 2-zone system, and 8.7 quarts for 2-zone systems with a front floor bulkhead. Ensuring the correct amount of AMSOIL Propylene Glycol Antifreeze and Engine Coolant is used is vital for maintaining proper engine temperature and preventing overheating.
The automatic transmission also requires careful attention to fluid levels. For the 8HP45 transmission, a total fill requires 9 quarts of fluid. This capacity is critical for the 8-speed automatic transmission to function correctly, providing the necessary hydraulic pressure and lubrication for the clutch packs and torque converter. When changing the transfer case lubricant, note that the front differential requires 1.1 pints, while the rear differential for open models requires 1.7 pints of GLS24 specification gear lube. Using the correct volume ensures that all gears and bearings are adequately covered, reducing friction and wear over the long term.
Brake Fluid and Cooling System
The braking system of the 2018 Discovery is critical for safety, especially given the vehicle’s weight and performance capabilities. The manufacturer recommends Land Rover-specific brake fluid, or in its absence, a DOT 4 ISO 4925 Class 4 fluid. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid meets these stringent requirements, offering superior resistance to moisture absorption and higher boiling points compared to conventional brake fluids. This synthetic fluid ensures consistent pedal feel and reliable braking performance in both wet and dry conditions, reducing the risk of brake fade during heavy use.
The cooling system is another area where synthetic fluids shine. The engine generates significant heat, particularly when towing or driving in high temperatures. The AMSOIL Antifreeze & Coolant is a unique poly-organic acid (OAT) formulation that protects a wide variety of vehicle metals, gaskets, and hoses. It is compatible with all other antifreeze colors and is free from phosphates, nitrates, nitrites, silicates, borates, and amines, making it safe for the aluminum components commonly found in modern Land Rover engines. This extended protection lasts up to 150,000 miles or 5 years, whichever comes first, providing peace of mind and reducing the frequency of coolant changes.
Gear Lubes and Differential Protection
Differentials and transfer cases in the Discovery operate under high loads, especially when engaging four-wheel drive or towing heavy loads. The front differential requires 1.1 pints of 75W-90 synthetic gear lube, while the rear differential requires 1.7 pints. AMSOIL SEVERE GEAR 75W-90 is formulated to control thermal runaway, a common issue in differentials where excessive heat causes the fluid to break down. This lube helps reduce operating temperatures, protects against rust and corrosion, and contains friction modifiers that are beneficial for limited-slip applications. By using this advanced synthetic gear lube, you ensure long oil, seal, and equipment life, even in the most demanding off-road conditions.
Vehicle Maintenance and Performance
Proper maintenance of your 2018 Land Rover Discovery goes beyond just changing fluids; it involves using the right products to maintain peak performance. The use of AMSOIL P.i. Performance Improver gasoline additive can help restore up to 14% of lost horsepower and clean GDI fuel injectors to 100% flow rate. This is particularly beneficial for the direct injection engine found in the Discovery, as it helps prevent carbon buildup and improves fuel economy. Additionally, the use of a high-quality synthetic motor oil helps control oil consumption, a common issue in high-performance engines, and provides superior leak protection.
For those who plan to store their Discovery during the off-season, AMSOIL Gasoline Stabilizer keeps fuel fresh for up to 12 months, preventing varnish and gum buildup. The AMSOIL Engine Fogging Oil is designed to protect internal engine components from rust during long periods of inactivity. These products ensure that your vehicle is ready to go when the weather improves, without the need for extensive preparation. By following a regimen of regular maintenance with AMSOIL products, you can extend the life of your Discovery and enjoy its performance capabilities for years to come.