The 2018 Lexus LX570 is a formidable luxury SUV, built to handle both rugged off-road terrain and smooth highways with equal ease. However, this capability places significant demands on the vehicle’s powertrain and lubrication systems. To ensure optimal performance, fuel efficiency, and longevity for your 5.7-liter 8-cylinder engine, using the correct synthetic lubricants is essential. Proper maintenance starts with selecting the right viscosity and fluid type, ensuring that every component from the engine to the differentials operates with minimal friction and maximum protection.
Recommended AMSOIL Products
For the 2018 Lexus LX570, AMSOIL offers a comprehensive lineup of synthetic lubricants designed to exceed original equipment manufacturer specifications. These products provide superior protection against wear, sludge, and extreme temperatures, which is crucial for a vehicle of this size and power.
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – The ultimate choice for maximum engine protection and extended drain intervals up to 25,000 miles, offering superior horsepower retention.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – An excellent alternative for extended drain intervals up to 20,000 miles, featuring enhanced cleaning power to keep the engine running smoothly.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – A premium synthetic option that outperforms conventional oils and OEM standards while providing up to 12,000 miles of protection.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Specifically formulated for engines over 75,000 miles, this oil reduces sludge and helps maintain engine performance in older vehicles.
- AMSOIL Oil Filter – Engineered with a high-efficiency filter media to capture 99 percent of contaminants at 20 microns, extending the life of your synthetic oil change.
- WIX Oil Filter – A high-quality replacement filter that offers premium media improvements over OEM-branded filters for reliable filtration.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A pre-mixed, phosphate-free formulation designed to protect cooling system metals and last up to 150,000 miles.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated, eco-friendly coolant option that offers extended protection and meets rigorous industry standards.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Withstands the rigors of heavy towing and elevated temperatures, ensuring smooth shifting and extended transmission life.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Provides essential wear protection and fluid stability for automatic transmissions requiring AE80F specifications.
- AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube – Ideal for front and rear differentials, this lube controls thermal runaway and provides advanced protection for limited-slip applications.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Offers excellent responsiveness and a stable viscosity over a wide temperature range for safe braking performance.
- AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – A versatile fluid suitable for power steering systems that require DEXRON-III specifications, offering superior temperature tolerance.
- AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – An OE specification fluid that guards against leaks and promotes smooth, shudder-free shifts in power steering systems.
Engine Oil and Filter Specifications
The 2018 Lexus LX570 is equipped with the robust 5.7-liter 3UR-FE V8 engine. This powerhouse requires a lubricant that can handle high loads and extreme temperatures while maintaining fuel economy. AMSOIL recommends the 0W-20 viscosity grade, which is the optimal choice for balancing cold-weather starting performance with fuel efficiency. The oil capacity for this engine is 7.9 quarts, including the filter replacement. When servicing the engine, it is important to torque the oil drain plug to 30 ft/lbs and always install a new washer on the drain bolt to prevent leaks.
AMSOIL Signature Series 0W-20 is the top recommendation for this vehicle. It provides 75% more engine protection against horsepower loss and wear compared to conventional oils. If you prefer a standard synthetic option that still exceeds OEM mileage expectations, the OE 0W-20 is a reliable choice that fights sludge and deposits. For LX570 owners with higher mileage, the High-Mileage 0W-20 features a unique chemistry to reduce sludge and improve engine cleanliness. Matching these oils with a high-performance filter is critical for maximizing the benefits of the synthetic oil. The AMSOIL Oil Filter EA15K04 offers a 99 percent filtration efficiency at 20 microns, ensuring that contaminants are captured before they can cause wear to your engine’s critical components.
Transmission and Differential Fluids
Powering a vehicle of the LX570’s weight and stature requires a transmission fluid that can handle heavy towing and challenging terrain. The 8-speed automatic transmission in this model benefits significantly from synthetic fluids that remain stable under high heat. AMSOIL Signature Series Fuel-Efficient Automatic Transmission Fluid is designed to withstand the rigors of heavy use while remaining fluid in sub-zero temperatures. The total fill capacity for the transmission is 10.7 quarts, though an initial fill requires 2.9 quarts. If you require an OE specification, the OE Fuel-Efficient Automatic Transmission Fluid is an excellent alternative that protects against wear and resists sludge formation.
The front and rear differentials also require specialized lubrication to ensure smooth operation and longevity. Both the front and rear differentials require GL-5 75W-85 gear lube. The front differential holds approximately 4 pints, while the rear holds 8.9 pints. For these heavy-duty applications, AMSOIL SEVERE GEAR 75W-85 100% Synthetic Gear Lube is the preferred choice. This 100% synthetic gear lube contains friction modifiers specifically designed for limited-slip differentials, helps reduce operating temperatures, and provides protection against rust and corrosion. This lubrication ensures that your drivetrain components remain protected even when towing heavy loads or driving off-road.
Additional Fluids and Maintenance
Maintaining the cooling system and braking performance is equally important for the longevity of your LX570. The vehicle’s cooling system capacity is 17.1 quarts. AMSOIL Passenger Car & Light Truck Antifreeze & Coolant provides a phosphate-free, pre-mixed solution that protects all cooling system metals and lasts up to 5 years or 150,000 miles. For those who prefer a concentrated option, the Propylene Glycol Antifreeze and Engine Coolant is a versatile choice that meets rigorous standards for corrosion and erosion protection.
Brake safety cannot be compromised. The LX570 recommends a hydraulic brake fluid meeting DOT 3 specifications. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid ensures excellent responsiveness for anti-lock braking and traction control systems, maintaining stable viscosity across a wide temperature range. Additionally, if your LX570 requires power steering fluid, the vehicle specification calls for a fluid compatible with DEXRON-III. AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid and OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid are both suitable for this application, providing the necessary viscosity and friction characteristics to ensure smooth steering assist.
About the Vehicle
The 2018 Lexus LX570 is widely recognized as a flagship luxury SUV, serving as the premium counterpart to the Toyota Land Cruiser. Introduced to the North American market to compete with the highest-tier vehicles like the Cadillac Escalade and Lincoln Navigator, the LX570 distinguishes itself with a reputation for bulletproof reliability and exceptional off-road capability. Under the hood lies the legendary 5.7-liter V8 engine, known for its immense torque and smooth power delivery. This engine is paired with a robust 8-speed automatic transmission that seamlessly shifts gears to maintain power where it is needed most.
Owners of the LX570 value the vehicle for its unique combination of on-road refinement and off-road prowess. It features a full-time 4-wheel-drive system with a locking center differential and multi-terrain select, allowing it to navigate difficult trails with ease while providing a quiet, comfortable ride on the highway. The interior is typically appointed with high-quality leather, wood trim, and advanced technology, catering to those who demand luxury without sacrificing utility. Its boxy yet elegant design, large dimensions, and powerful presence make it a standout on the road.
However, owning a vehicle of this magnitude and capability comes with specific maintenance needs that synthetic lubricants can address effectively. One common issue among high-mileage LX570s is the potential for oil consumption or increased engine noise, which can be mitigated by using the AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil with enhanced seal conditioners and anti-wear additives. Another frequent concern is transmission shuddering or hesitation, often caused by overheating or fluid degradation; switching to the AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid can restore smooth shifting and extend the life of the clutch packs. Additionally, the heavy-duty nature of the differentials in these vehicles can lead to premature wear or thermal breakdown of gear oil, especially during towing. Using a premium synthetic gear lube like AMSOIL SEVERE GEAR 75W-85 helps control thermal runaway and protects limited-slip components, ensuring reliable traction in various conditions. Finally, brake fade can be a concern during repeated heavy braking, and maintaining high-quality AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid can help preserve braking performance under stress.
The LX570 is a vehicle built for the long haul, designed to serve its owners faithfully for years of service. By adhering to a strict maintenance schedule using the correct synthetic lubricants, owners can ensure that their LX570 continues to perform at the highest level, preserving its value and capability for the future.