The 2007 Acura 3.5RL is a sophisticated luxury sedan powered by the reliable J35A8 V6 engine. Maintaining this vehicle requires precision, especially when it comes to fluid selection. Using the correct viscosity and performance-rated fluids is essential for preserving the engine’s internal components, ensuring smooth transmission shifts, and maintaining optimal braking performance over the years. For owners of this model, choosing premium synthetic lubricants provides superior protection against wear, heat, and sludge, extending the service life of critical drivetrain components.
Recommended AMSOIL Products
For the 2007 Acura 3.5RL 3.5L 6-cylinder, AMSOIL offers a comprehensive range of 100% synthetic lubricants designed to exceed factory specifications. These products provide enhanced protection for engines with over 75,000 miles or those operating in severe service conditions, ensuring your luxury sedan performs smoothly regardless of driving habits.
- AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil – The premier choice for maximum protection against horsepower loss and wear, suitable for up to 25,000 miles or one year.
- AMSOIL Extended-Life 5W-20 100% Synthetic Motor Oil – Offers extended drain intervals up to 20,000 miles with superior cleaning power to keep the engine running smoother.
- AMSOIL OE 5W-20 100% Synthetic Motor Oil – An economical option that fights sludge and deposits, providing reliable OEM-level protection.
- AMSOIL 5W-20 100% Synthetic High-Mileage Motor Oil – Specifically formulated for vehicles over 75,000 miles to boost detergency and reduce sludge by 67%.
- AMSOIL Oil Filter – Provides 99% filtration efficiency at 20 microns with reduced restriction to keep engine parts properly lubricated.
- WIX Oil Filter – A premium aftermarket option that offers improvements over original equipment manufacturer branded filters for standard service.
- AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Withstands heavy towing and elevated temperatures while remaining fluid in sub-zero conditions.
- AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Provides excellent cold-weather performance and guards against leaks for smooth, shudder-free shifts.
- AMSOIL 75W-90 Manual Transmission & Transaxle Gear Lube – Protects brass synchronizers and offers outstanding cold-flow properties.
- AMSOIL SEVERE GEAR® 80W-90 100% Synthetic Gear Lube – Contains friction modifiers for limited-slip applications and helps reduce operating temperatures.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – Delivers advanced protection against wear while controlling thermal runaway.
- AMSOIL SEVERE GEAR® 75W-110 100% Synthetic Gear Lube – A heavy-duty option for extreme pressure and heavy axle applications.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A pre-mix 50/50 formulation that protects all cooling system metals for up to 150,000 miles.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated non-ethyl glycol option that greatly surpasses standards for metallic corrosion and erosion.
- 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.
Engine Oil and Filter Recommendations
The heart of the 2007 Acura 3.5RL is the J35A8 3.5-liter V6 engine. To ensure longevity, this engine requires 5W-20 viscosity motor oil. The total capacity for an oil change with filter replacement is 4.5 quarts. After refilling, owners should check the oil level to ensure it is within the safe operating range. The engine’s drain plug should be torqued to 29 ft/lbs to prevent leaks and ensure proper sealing.
AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil stands out as the ultimate choice for this engine, offering up to 25,000 miles of protection. This fluid provides 75% more engine protection against horsepower loss and wear compared to industry standards. For those seeking a balance between performance and value, the AMSOIL Extended-Life 5W-20 offers a guaranteed 20,000 miles between changes while providing 37% more cleaning power to keep the engine smooth. Drivers of older 3.5RL models with significant mileage should consider the AMSOIL High-Mileage Motor Oil, which features a unique chemistry designed to reduce sludge by 67% and boost detergency for engines over 75,000 miles.
Filtration is equally critical. The recommended AMSOIL Oil Filter (EA15K13) provides 99 percent filtering efficiency at 20 microns, capturing wear-causing contaminants more effectively than many competitors. This extended service life filter helps reduce engine wear and offers greater capacity for small particles, ensuring the oil remains clean for the duration of the drain interval. For drivers who prefer a high-quality aftermarket option, the WIX Oil Filter (57356) also offers premium media that outperforms many OEM-branded filters, delivering consistent performance at a lower cost.
Transmission and Drivetrain Fluids
The 2007 Acura 3.5RL utilizes a 5-speed automatic transmission (MJBA) which requires specific fluid characteristics to operate smoothly. The total fill capacity for this transmission is 7.6 quarts, with an initial fill requirement of 2.9 quarts. Maintaining the health of the transmission is vital, as this component endures significant heat and stress during normal driving, especially when towing or carrying heavy loads.
AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid is engineered to withstand the rigors of heavy towing, elevated temperatures, and challenging terrain. It remains fluid in sub-zero temperatures and provides reserve protection during heavy use. The fluid guards against leaks and promotes smooth, shudder-free shifts. For a cost-effective solution that still meets high-performance standards, the AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid resists harmful sludge and offers excellent cold-weather performance, ensuring your Acura shifts smoothly from a stop or during highway acceleration.
While the 3.5RL is a front-wheel-drive vehicle, some owners may have aftermarket differentials or transfer cases, or simply require lubricants for other gear applications. AMSOIL offers a robust lineup of gear lubes. The 75W-90 Manual Transmission & Transaxle AMSOIL Gear Lube is ideal for protecting brass synchronizers and inhibiting rust. For heavy-duty applications, the AMSOIL SEVERE GEAR® 80W-90 and AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lubes provide advanced protection against wear and thermal runaway. These fluids contain friction modifiers for limited-slip applications and help reduce operating temperatures, extending the life of seals and gears.
Coolant and Brake Fluid
Proper cooling system maintenance prevents overheating and corrosion, which are common issues in older luxury sedans. The 2007 Acura 3.5RL cooling system holds 6.3 quarts of antifreeze. AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a unique poly-organic acid (OAT) formulation that is phosphate, nitrate, nitrite, silicate, borate, and amine-free. This 50/50 pre-mix protects all cooling system metals, gaskets, and hoses for up to 150,000 miles or five years. For those who prefer a concentrated option that requires mixing with distilled water, the AMSOIL Propylene Glycol Antifreeze and Engine Coolant offers protection for up to 150,000 miles and vastly surpasses standards for metallic corrosion and erosion.
Brake safety cannot be compromised. The 3.5RL recommends Acura Heavy Duty Brake Fluid DOT 3. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid provides a stable viscosity over a wide temperature range, ensuring excellent ABS and traction-control responsiveness. Synthetic brake fluid resists moisture absorption, which prevents boiling and ensures consistent pedal feel even after repeated hard braking.
Seasonal Storage and Maintenance Additives
For owners who store their vehicles during the off-season or wish to maximize fuel system performance, specific additives are recommended. AMSOIL Gasoline Stabilizer helps keep fuel fresh for up to 12 months, protecting against varnish and gum buildup while fighting ethanol corrosion. To preserve the engine during storage, AMSOIL Engine Fogging Oil is highly effective, forming a rust-preventive coating on internal components to protect against corrosion during long periods of inactivity.
To maintain peak performance, AMSOIL P.i. Performance Improver Gasoline Additive can restore up to 14% horsepower and clean GDI fuel injectors back to 100% flow rate after just one tank of fuel. This additive also helps prevent carbon buildup and controls pre-ignition knock, making it an ideal companion for the high-performance V6 engine. Additionally, the AMSOIL Upper Cylinder Lubricant Corrosion Inhibitor provides essential lubrication for the fuel system and upper cylinders, compatible with capless fuel systems.
Vehicle Background
The 2007 Acura 3.5RL represents the culmination of Acura’s flagship sedan lineage, built on the Honda Legend platform. This full-size luxury sedan was designed to compete directly with established European rivals, offering a blend of Japanese reliability and upscale comfort. Under the hood lies the J35A8 3.5-liter V6 engine, part of Honda’s renowned Earth Dreams V6 family (specifically the J-series architecture). This engine was lauded for its smooth power delivery, refined operation, and durability. The vehicle featured a sophisticated four-wheel independent suspension setup that balanced comfort with a composed driving dynamic, making it a favorite for highway cruisers and long-distance travelers.
Owners of the 3.5RL typically appreciate the car’s plush interior, which includes high-quality leather upholstery, wood trim accents, and a comprehensive suite of amenities standard for the era. The vehicle’s market position was unique, offering luxury features at a price point often lower than its German counterparts, while maintaining the legendary reliability Honda is known for. However, like any vehicle with over 15 years of age, the 3.5RL is susceptible to certain common issues that can be mitigated through diligent maintenance with high-quality fluids.
One prevalent issue in these older V6 engines is sludge buildup, particularly if the vehicle was previously operated with conventional oil or extended drain intervals without proper monitoring. The accumulation of sludge can restrict oil flow to critical components, leading to increased wear. Using a high-quality synthetic oil like AMSOIL Signature Series, which contains a robust detergent package, helps dissolve existing sludge and prevent new deposits from forming, keeping the oil galleries clean.
Another common concern involves transmission fluid degradation. The 5-speed automatic transmission in the 3.5RL can develop shuddering or delayed shifts if the fluid breaks down or loses its friction modifiers over time. This is often exacerbated by high-mileage driving or towing. AMSOIL Synthetic Transmission Fluids maintain their viscosity and friction properties longer than conventional fluids, ensuring smooth engagement and reducing the risk of transmission wear. Additionally, the cooling system in older vehicles can suffer from coolant breakdown, leading to corrosion and potential overheating. A high-performance antifreeze that exceeds OEM standards helps protect the aluminum engine block and radiator components from corrosion, extending the life of the cooling system.
Finally, brake fluid in luxury vehicles often absorbs moisture over time, which can lead to a spongy brake pedal and reduced ABS effectiveness. Regular replacement with a high-boiling-point AMSOIL Brake Fluid restores the braking system’s responsiveness. By addressing these specific areas of concern with the correct AMSOIL products, owners can keep their 2007 Acura 3.5RL running with the reliability and performance it was designed for, effectively solving common age-related problems through superior lubrication.