The 2007 Land Rover LR3 equipped with the 4.0L inline-six engine is a capable vehicle known for its off-road prowess and luxurious interior. However, like many premium vehicles from the mid-2000s, it requires precise maintenance to ensure longevity. The engine is designed to run on 5W-30 synthetic motor oil, with a system capacity of 6.0 quarts including the filter. Selecting the correct lubricants is not just about meeting a specification; it is about protecting complex components from the wear and tear of high-mileage driving. AMSOIL synthetic lubricants provide the necessary protection for extreme temperatures, heavy towing, and extended intervals between changes, ensuring the vehicle performs as intended by the manufacturer.
Recommended AMSOIL Products
- AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil – Offers unsurpassed protection against horsepower loss and wear for up to 25,000 miles.
- AMSOIL Extended-Life 5W-30 100% Synthetic Motor Oil – Provides extended drain protection up to 20,000 miles with enhanced cleaning power.
- AMSOIL OE 5W-30 100% Synthetic Motor Oil – An excellent option for those seeking conventional oil protection with the benefits of a 100% synthetic formulation.
- AMSOIL 5W-30 100% Synthetic High-Mileage Motor Oil – Specifically formulated for vehicles over 75,000 miles to boost detergency and reduce sludge.
- AMSOIL Oil Filter – Delivers 99% filtering efficiency at 20 microns to keep engine parts lubricated and reduce wear.
- WIX XP Oil Filter – A premium media filter offering improvements over standard OEM-branded filters.
- WIX Oil Filter – A reliable OEM-quality filter option for standard maintenance schedules.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A ready-to-use 50/50 ethylene glycol pre-mix protecting the cooling system for up to 150,000 miles.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated formula requiring mixing, offering up to 150,000 miles of protection for passenger cars and light trucks.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Withstands heavy towing and high temperatures while remaining fluid in sub-zero conditions.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Designed to protect against wear in automatic transmissions.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – Provides advanced protection against wear and thermal runaway in differentials and transfer cases.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Delivers excellent ABS responsiveness and stable viscosity across a wide temperature range.
Proper lubrication extends the service life of your Land Rover LR3. The engine requires a specific torque of 18 ft/lbs on the oil drain plug, and oil levels must be checked after refilling. Using high-quality synthetic motor oils ensures that the engine remains protected during extreme heat, cold starts, or when towing heavy loads. The 6-speed automatic transmission, identified as the 6HP26, requires a total fill of 10 quarts for optimal performance. Filling the cooling system requires specific capacities depending on the heater configuration; models with the rear heater require 8.9 quarts, while those with the rear passenger heater require 10.6 quarts. Differential lubricants are also critical, with the front differential holding 1.3 pints and the open rear differential holding 2.3 pints. Selecting the right products from the list above ensures every component is maintained according to the manufacturer’s rigorous standards.
Essential Lubrication Details
The 2007 LR3’s 4.0L engine is a robust unit, but it benefits significantly from the superior film strength of synthetic oils. AMSOIL Signature Series 5W-30 is the top recommendation, offering protection for up to 25,000 miles or one year. This oil is engineered to reduce horsepower loss and wear, which is critical for maintaining the performance of a vehicle that may see heavy use. For those who prefer a standard change interval, the Extended-Life 5W-30 provides up to 20,000 miles of protection, while the OE 5W-30 offers a cost-effective synthetic solution. If your vehicle has accumulated over 75,000 miles, the High-Mileage 5W-30 includes a unique chemistry to reduce oil consumption and clean sludge that may have formed over time.
Filter selection is equally important. The AMSOIL Oil Filter (EAO11-EA) is designed to provide 99% efficiency at 20 microns, capturing contaminants that can cause engine wear. It also offers extended service life, allowing you to change the filter along with the synthetic oil without restriction issues. Alternatively, the WIX XP Oil Filter offers premium media that outperforms standard OEM filters, providing excellent flow and filtration. For standard maintenance needs, the WIX Oil Filter remains a solid choice that meets the requirements of the engine. Matching the filter to your oil choice ensures maximum protection for the 6-quart capacity engine.
Cooling system maintenance is vital for the LR3. The AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a pre-mixed formulation that works in a wide variety of vehicles. It is phosphate-, nitrate-, nitrite-, silicate-, borate-, and amine-free, which prevents the buildup of deposits and protects all cooling system metals. For those who prefer mixing their own, the Propylene Glycol Antifreeze offers a concentrated option that protects up to 150,000 miles or five years. Both options ensure the engine and heater systems operate efficiently, preventing overheating in summer and freezing in winter.
The transmission and differentials also require specialized attention. The 6HP26 automatic transmission is sensitive to heat and stress. AMSOIL Signature Series ATF remains fluid in sub-zero temperatures and withstands the rigors of heavy towing and challenging terrain, protecting the transmission from wear and sludge. The OE ATF provides a solid alternative for standard driving conditions. For the differentials, AMSOIL SEVERE GEAR 75W-90 is the recommended lubricant. It contains friction modifiers suitable for limited-slip applications and helps control operating temperatures, extending the life of the gears and seals. Whether you have an open or limited-slip rear differential, this synthetic gear lube provides the necessary protection against rust, corrosion, and wear.
AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is often overlooked but plays a crucial role in vehicle safety. It is designed to provide excellent responsiveness in ABS and traction-control systems. It maintains stable viscosity over a wide temperature range, ensuring consistent braking performance in all conditions. Regular changes of this fluid help prevent moisture buildup, which can lead to brake fade and corrosion.
About the Vehicle
The 2007 Land Rover LR3 represents a significant era for the British automaker’s North American lineup. Before the introduction of the Discovery Sport and the current Discovery lineup, the LR3 served as the flagship luxury SUV for the brand in the United States. It shares its platform, known as the D3 chassis, with the Range Rover but is designed with a distinct character that emphasizes versatility. The 4.0L V6 engine featured in this model is an all-aluminum V6 that delivers smooth power, though the vehicle is often associated with the more powerful V8 variants that followed. This specific iteration of the engine, code 4, was the primary powertrain option for this generation, balancing performance with a relatively moderate fuel consumption profile for a vehicle of its size.
Owners of the 2007 LR3 often praise its unique blend of capabilities. It was engineered to be a dual-threat vehicle, capable of crossing serious off-road terrain while offering a level of luxury and comfort expected from a premium SUV. The interior is spacious, accommodating up to seven passengers in some configurations, which made it a popular choice for families who needed to haul gear without sacrificing style. The air suspension system, a hallmark of the platform, allows for adjustable ride height, enhancing the off-road capability while providing a smooth highway ride. This combination of on-road refinement and off-road toughness cemented the LR3’s reputation as one of the more capable luxury SUVs of its time.
However, with age, these vehicles can develop specific issues that require proactive maintenance. One common challenge for the 2007 LR3 involves the air suspension system, which can suffer from air spring leaks and compressor failures over time. While AMSOIL lubricants cannot fix a mechanical leak, using high-quality synthetic fluids helps reduce the load on the suspension components and prevents the seals from drying out and cracking due to age, potentially extending their service life. The suspension components benefit from the low-friction properties of AMSOIL grease and protectants.
Another area of concern for this vehicle is oil consumption and sludge buildup in the engine, particularly if the vehicle has seen high mileage or has been subjected to short-trip driving. The 4.0L engine can be prone to oil sludge if conventional oils are used or if oil change intervals are extended beyond standard recommendations. Switching to a high-quality synthetic motor oil like AMSOIL can help mitigate this issue by keeping the engine cleaner and reducing the formation of sludge. The enhanced detergents in AMSOIL High-Mileage oils are specifically designed to clean and prevent sludge, which is a common concern for owners of this model as it ages.
Transmission issues can also arise, particularly with the 6-speed automatic transmission. Over time, the fluid can break down, leading to rough shifting and increased wear on the internal clutches and bands. Regular fluid changes using a high-performance synthetic transmission fluid can help maintain smooth shifting and protect the transmission from the heat and stress associated with towing or driving on rough terrain. Additionally, the cooling system, which is critical for the durability of the engine and transmission, can suffer from corrosion and deposit buildup. The use of a high-quality, long-life antifreeze coolant helps protect the system’s metals and hoses, preventing leaks and overheating issues that are common in older Land Rovers.
Finally, the braking system of the LR3 requires consistent performance to ensure safety. Moisture accumulation in the brake fluid over time can lower the boiling point and lead to brake fade, especially during heavy use or in mountainous terrain. Flushing the system with a synthetic brake fluid like AMSOIL DOT 3 and DOT 4 ensures that the fluid maintains its properties, providing reliable stopping power and protecting the brake lines and calipers from corrosion. By addressing these common areas of concern with the right lubricants, owners can keep their 2007 Land Rover LR3 running smoothly for years to come.
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