The 2018 Toyota Tacoma is built for serious work, whether you are tackling off-road trails, hauling heavy cargo, or embarking on long-distance commutes. At the heart of this capability is the 3.5L 6-cylinder engine (engine code 2GR-FKS 5), a robust powerplant designed for longevity. However, the demanding nature of this vehicle’s intended use places significant stress on its internal components and supporting systems. Choosing the right lubricants is not merely about following a maintenance schedule; it is about providing the necessary protection to keep the engine running smoothly, the transmission shifting crisply, and the cooling system stable under the harshest conditions.
Using high-quality synthetic lubricants specifically formulated for this engine ensures that you maximize fuel economy while reducing wear and tear. The 3.5L engine requires a precise viscosity to handle extreme temperatures and heavy loads, making the selection of the correct fluid critical. Below, we detail the recommended AMSOIL products that meet or exceed Toyota’s specifications, ensuring your Tacoma receives the protection it deserves.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – Our premier choice for the 2018 Tacoma, offering up to 25,000 miles of protection and superior resistance to oil thickening and thermal breakdown. This synthetic formula provides 75% more engine protection against horsepower loss and wear.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – An excellent alternative that offers extended service intervals up to 20,000 miles or one year. It features enhanced cleaning power to help keep the engine running smoother for a longer duration.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – A trusted 100% synthetic option designed to outperform conventional oils while meeting OEM mileage expectations. It effectively fights sludge and deposits with a robust synthetic formulation.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Ideally suited for high-mileage engines over 75,000 miles, this oil includes boosted detergents and enhanced anti-wear additives to reduce sludge and help older engines perform better.
- AMSOIL Oil Filter – Engineered to provide 99% filtering efficiency at 20 microns, this filter allows lower restriction to keep engine parts lubricated and offers greater capacity for wear-causing contaminants than competing brands.
- WIX Oil Filter – A premium aftermarket option that offers improvements over original equipment manufacturer-branded filters, ensuring your engine is protected from the smallest debris particles.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid (OAT) formulation that is phosphate-, nitrate-, and silicate-free. It provides protection up to 150,000 miles or 5 years and protects all cooling system metals, gaskets, and hoses.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated solution that offers extended protection up to 150,000 miles or 5 years in passenger cars and light trucks. It greatly surpasses standards for metallic corrosion and erosion protection.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Designed to withstand the rigors of heavy towing, elevated temperatures, and challenging terrain while maintaining fluidity in sub-zero temperatures. It provides reserve protection during heavy use.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – A reliable synthetic option that protects against wear and promotes smooth, shudder-free shifts, making it an excellent choice for maintaining transmission health.
- AMSOIL 75W-90 Manual Transmission & Transaxle Gear Lube – Provides outstanding protection against increased heat and pressure with excellent cold-flow properties. It is friction-modified for excellent seal compatibility and protects brass synchronizers.
- AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube – Advanced protection for front and rear differentials, controlling thermal runaway and helping to reduce operating temperatures. It contains friction modifiers specifically for limited-slip applications.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Delivers excellent ABS and traction-control responsiveness with a stable viscosity over a wide temperature range, ensuring reliable braking performance in all conditions.
- AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Versatile enough for power steering systems, this fluid withstands heavy towing and elevated temperatures, making it an ideal choice for the Tacoma’s specific fluid requirements.
- AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Resists harmful sludge and promotes smooth shifts, making it a reliable option for power steering and other hydraulic systems that require multi-vehicle specifications.
Proper lubrication extends the life of your vehicle’s components. For the engine, maintaining the correct oil change interval is vital. The 3.5L engine with the 2GR-FKS 5 code holds approximately 6.1 to 6.2 quarts of oil when the filter is included. It is essential to check the oil level after refilling and torque the drain plug to 30 ft/lbs using a new washer. By adhering to these guidelines and using premium synthetics, you ensure the engine remains protected against the high stresses of modern driving.
The transmission system also requires specific attention. Whether you have the automatic or manual variant, using the correct fluid is key. The automatic transmission requires about 3.3 quarts for an initial fill, with a total fill capacity of roughly 10.6 to 10.8 quarts depending on the transmission configuration. The manual transmission holds approximately 5.3 pints and requires a specific 75W-90 AMSOIL 75W-90 Manual Transmission & Transaxle Gear Lube. For the differentials, the front unit holds about 3.2 pints, while the rear varies by cab configuration, ranging from 6.1 to 8.5 pints. Using the recommended AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube in these units prevents wear and controls heat, which is critical for off-road durability.
About the Vehicle
The 2018 Toyota Tacoma stands as a testament to Toyota’s engineering philosophy: creating a mid-size truck that balances rugged utility with everyday drivability. This model, equipped with the 3.5L V6 engine, represents a significant evolution from the earlier generations, offering a more refined driving experience without sacrificing the toughness required for work and play. The Tacoma has long held a reputation for reliability and resale value, making it a favorite among truck enthusiasts, contractors, and adventurers alike.
Powered by the 2GR-FKS engine, the 2018 Tacoma delivers a balance of power and efficiency that rivals full-size trucks. This engine is known for its smooth power delivery and durability, capable of handling both heavy loads on the job site and spirited driving on the open road. The vehicle’s platform allows for a variety of configurations, including Double Cab and Access Cab, with options for both rear-wheel and four-wheel drive systems. This versatility is one of the primary reasons owners love this truck; it can be tailored to fit the specific needs of the driver, whether they are a weekend off-roader or a daily commuter.
However, with power and utility comes the potential for common wear issues that can be mitigated through proactive maintenance. One prevalent challenge for Tacoma owners involves the engine oil consumption. Some owners of the 2GR-FKS engine may experience slightly higher oil consumption than expected, particularly under heavy load or hot conditions. Using a high-quality synthetic motor oil like the AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil, which is formulated to resist oxidation and thermal breakdown, can help maintain consistent oil levels and reduce the frequency of top-offs.
Another area where synthetic lubricants can provide a significant advantage is in the cooling system. The Tacoma’s V6 engine can generate substantial heat, especially when towing or climbing steep grades. Over time, this heat can degrade standard coolants, leading to corrosion or overheating issues. Switching to a high-performance antifreeze like AMSOIL’s Propylene Glycol Antifreeze and Engine Coolant or Passenger Car & Light Truck Antifreeze & Coolant can protect the cooling system components, extending the life of the radiator, hoses, and gaskets.
Transmission longevity is also a key concern for high-mileage Tacoma owners. The AC60E automatic transmission, often found in these models, can experience shuddering or rough shifting if the fluid degrades. The friction modifiers and anti-wear additives in AMSOIL’s synthetic transmission fluids are specifically designed to prevent these issues, ensuring smooth shifts even after extended periods between changes. Finally, the rear differential on models with limited-slip differentials can suffer from noise and wear if the gear lube breaks down. Using a specialized synthetic gear lube like AMSOIL SEVERE GEAR provides the necessary lubricity to keep the gears silent and protected, preserving the drivetrain’s integrity for years to come.
By understanding the specific needs of the 2018 Toyota Tacoma and equipping it with the right fluids, owners can ensure their vehicle remains a reliable companion for whatever challenges lie ahead. From the road to the trail, proper lubrication is the foundation of long-term ownership success.