Maintaining your 2012 Ford Explorer with the 3.5L V6 requires a comprehensive approach to fluid selection. This engine, known for its performance and versatility, is designed to operate best with 5W-20 viscosity motor oil. However, proper maintenance extends far beyond the engine block. Using the correct lubricants for your AMSOIL Oil Filter, transmission, differentials, and cooling system ensures that every mechanical component remains protected against wear, corrosion, and the stress of varying driving conditions. Whether you are towing a load, navigating city traffic, or embarking on a long highway journey, the right fluids minimize friction and extend the service life of your vehicle.
Recommended AMSOIL Products
- AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil – Offers the highest level of engine protection with guaranteed service intervals up to 25,000 miles or one year, featuring 75% more protection against horsepower loss and wear.
- AMSOIL Extended-Life 5W-20 100% Synthetic Motor Oil – Provides extended 20,000-mile service intervals with enhanced cleaning power to help keep the engine running smoothly and protects against Low-Speed Pre-Ignition (LSPI).
- AMSOIL Oil Filter EAO17 – Delivers 99% filtering efficiency at 20 microns and offers extended service life to match synthetic motor oils, reducing engine wear by capturing smaller contaminants.
- WIX XP Oil Filter 57502XP – A premium media filter that offers significant improvements over standard OEM filters, ensuring reliable oil flow and filtration for the 3.5L engine.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Engineered to withstand heavy towing, elevated temperatures, and challenging terrain while remaining fluid in sub-zero conditions.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A pre-mixed 50/50 formulation that protects all cooling system metals, gaskets, and hoses for up to 150,000 miles or five years.
- AMSOIL SEVERE GEAR® 75W-140 100% Synthetic Gear Lube – The recommended lubricant for the transfer case, offering advanced protection against wear, thermal runaway, and rust.
- AMSOIL SEVERE GEAR® 80W-90 100% Synthetic Gear Lube – Ideal for rear differentials requiring GL-5 lubricant, providing extended equipment life and thermal control.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Delivers excellent ABS responsiveness and a stable viscosity range to ensure consistent braking performance in all temperatures.
The heart of your 2012 Ford Explorer is its 3.5-liter V6 engine. This powertrain is engineered to deliver a balance of power and efficiency, but it demands a lubricant that can handle the thermal stresses of combustion while protecting intricate internal components. The recommended oil viscosity is 5W-20, with a total capacity of 6.0 quarts when including a filter change. Ensuring the oil level is checked immediately after the refill is critical for maintaining proper lubrication. For those looking for the absolute best in engine longevity, the AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil provides protection for up to 25,000 miles, reducing wear significantly compared to conventional alternatives. For owners who prefer a slightly shorter service interval or a more budget-conscious option without sacrificing synthetic benefits, the AMSOIL Extended-Life 5W-20 100% Synthetic Motor Oil offers 20,000 miles of protection with superior cleaning capabilities. Even for vehicles that have accumulated over 75,000 miles, the AMSOIL 5W-20 100% Synthetic High-Mileage Motor Oil is available to help reduce sludge and seal leaks.
Filtration is equally vital to the health of the engine. The AMSOIL Oil Filter works in tandem with the synthetic oils to trap wear-causing particles that could otherwise circulate through the engine. It features a higher contaminant capacity than many competing filters, which contributes to the extended service life potential. If you prefer aftermarket brands, the WIX XP Oil Filter and the standard WIX Oil Filter are also recommended options that offer premium media construction superior to standard OEM equivalents. Additionally, keeping the engine breathing efficiently is supported by the WIX Air Filter, which helps maintain optimal air-to-fuel ratios for peak performance.
Beyond the engine, the automatic transmission in your Explorer requires specific attention. Depending on the exact transmission model (6F55, 6F50, or 6F35), the total fill capacities vary from 9 to 11.6 quarts. To ensure smooth shifts and protection against the heat generated by stop-and-go traffic or towing, the AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid is an excellent choice. It resists viscosity breakdown and protects against the wear that can lead to costly transmission repairs. For a more economical option that still meets factory specifications, the AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid is also suitable. The cooling system requires a robust antifreeze solution. With a capacity of 12.2 quarts, the system needs a fluid that can protect against freezing and boiling. The AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a phosphate-, nitrate-, and silicate-free formula that is safe for all cooling system metals and compatible with other antifreeze colors, ensuring long-lasting protection.
The drivetrain, including the transfer case and rear differential, also benefits from synthetic gear lubes. The Power Transfer Unit (PTU) specifically requires SAE 75W-140 synthetic rear axle lubricant. AMSOIL SEVERE GEAR® 75W-140 100% Synthetic Gear Lube is formulated to control thermal runaway and reduce operating temperatures, which is crucial for transfer cases that may not see frequent fluid changes. For the rear differential, which typically requires 80W-90 GL-5, options include the AMSOIL SEVERE GEAR® 80W-90 100% Synthetic Gear Lube, or alternative viscosities like 75W-90 and 75W-110 depending on your specific driving conditions and manufacturer recommendations. Finally, the braking system relies on the AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid to maintain a stable viscosity over a wide temperature range, ensuring responsive ABS and traction control.
Vehicle Background
The 2012 Ford Explorer represents a pivotal point in the model’s history, marking the transition to a rear-wheel-drive unibody design. This change was significant for the brand, moving away from body-on-frame construction to a platform shared with the Ford Edge. This shift was designed to improve fuel efficiency, handling, and ride comfort while maintaining the capability required for a mid-size SUV. Powered by the 3.5-liter V6 engine in this specification, the vehicle offers a robust powertrain that balances performance with reliability. This engine is celebrated for its smooth power delivery and versatility, making the Explorer a popular choice for both family use and light-duty towing. The interior typically features a spacious cabin with available third-row seating, catering to a wide range of drivers looking for practicality. The 2012 model year also benefitted from a refreshed exterior design and improved interior ergonomics, solidifying its reputation as a capable and comfortable choice in the crowded SUV market. Owners often appreciate its blend of on-road handling and off-road potential, especially when equipped with appropriate four-wheel-drive systems and the correct lubrication.