Keeping your 2014 Toyota Tundra 5.7L running smoothly requires more than just following the factory service intervals. The robust 3UR-FBE engine was designed for durability and heavy-duty tasks, whether you are hauling loads, towing trailers, or navigating challenging terrain. Because this engine is a V8 that generates significant heat and stress, using the correct lubricants is critical to preventing premature wear and maintaining optimal fuel economy. AMSOIL synthetic lubricants are engineered to withstand the rigors of severe driving conditions, offering superior protection against heat, sludge, and oxidation compared to conventional oils.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – Provides unsurpassed engine protection with up to 25,000 miles of coverage for this specific 5.7L V8 engine.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – Offers extended drain intervals up to 20,000 miles while delivering 37% more cleaning power to keep the engine running smoother.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – A cost-effective synthetic option that outperforms conventional oils and fights sludge and deposits effectively.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Designed specifically for engines with over 75,000 miles, featuring a unique chemistry to reduce sludge and boost performance.
- AMSOIL Oil Filter – Features high-efficiency filtering (99% at 20 microns) and greater capacity to remove small, wear-causing contaminants.
- WIX Oil Filter – A premium aftermarket filter option that offers improvements over original equipment manufacturer-branded filters.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A 50/50 pre-mix formulation that provides protection up to 150,000 miles or 5 years and is compatible with all other coolant colors.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated formula that requires mixing and offers exceptional protection up to 150,000 miles or 5 years in passenger cars and light trucks.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Withstands heavy towing and elevated temperatures while remaining fluid in sub-zero conditions.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Protects against wear and provides excellent protection for the automatic transmission.
- AMSOIL SEVERE GEAR 75W-85 100% Synthetic Gear Lube – Advanced protection against wear and thermal runaway for front and rear differentials, including limited-slip applications.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Ensures excellent ABS and traction-control responsiveness with stable viscosity across a wide temperature range.
- AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Ideal for power steering systems requiring DEXRON-III specification, withstanding heavy towing and abusive conditions.
- AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Guards against leaks and promotes smooth, shudder-free shifts in power steering systems.
- AMSOIL Gasoline Stabilizer – Keeps fuel fresh for up to 12 months and protects against varnish and gum buildup during seasonal storage.
- AMSOIL Engine Fogging Oil – A highly effective rust preventive designed to protect internal engine components during long periods of inactivity.
- WIX Cabin Air Filters – Premium media that offers improvements over original equipment manufacturer-branded filters for better air quality.
- AMSOIL P.i. Performance Improver Gasoline Additive – Restores up to 14% horsepower and GDI fuel injectors to 100% flow rate after just one tank of fuel.
Understanding the oil capacity is essential for maintaining proper lubrication levels in your Tundra. For the 5.7L 8-cylinder engine with the 3UR-FBE code, the oil capacity is 7.9 quarts when the AMSOIL Oil Filter or a WIX Oil Filter is also replaced. After refilling, it is crucial to check the oil level to ensure the correct amount has been added. The viscosity grade specified for this engine is 0W-20 for all temperatures. This viscosity is the best choice for achieving good fuel economy and ensuring easy starting in cold weather. It is important to note that this specific grade should be replaced with another 0W-20 at the next oil change. If you are using E85 or M85 fuels, you must use an AMSOIL product of the appropriate viscosity for the OEM recommended drain interval, and extended oil drains can only be extended through oil analysis when these fuels are used. The torque specification for the oil drain plug is 30 ft/lbs. Proper lubrication extends the life of your engine components, reducing friction and heat buildup that can lead to catastrophic failure over time.
The cooling system of the 2014 Tundra also requires specific attention to maintain engine temperature within safe operating limits. The AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a 50/50 pre-mix formulation that provides protection up to 150,000 miles or 5 years and is compatible with all other coolant colors. The coolant capacity varies slightly depending on whether you have a two-wheel drive or four-wheel drive model. For the 4×2 model, the capacity is 11.4 quarts with the overflow tank, while the 4×4 model requires 12.4 quarts. For those preferring a concentrated coolant, AMSOIL Propylene Glycol Antifreeze and Engine Coolant offers protection up to 150,000 miles or 5 years. It greatly surpasses standards for metallic corrosion and erosion, making it a reliable choice for long-term engine health.
Transmission maintenance is equally vital for the durability of this heavy-duty truck. The 2014 Tundra with the automatic transmission has a total fill capacity of 11.7 quarts for the 6-speed transmission with an oil tank, and 12.3 quarts with the transmission tank. The initial fill capacity is 3.2 quarts. Using a properly formulated transmission fluid can protect your vehicle from costly problems down the road. AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid withstands the rigors of heavy towing, elevated temperatures, and challenging terrain. It remains fluid in sub-zero temperatures, providing reserve protection during heavy use. For a more budget-friendly option that still delivers synthetic performance, the AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid protects against wear and ensures smooth operation. Both fluids are designed to help the transmission perform reliably under the high demands placed on the Tundra.
Differential and Transfer Case Lubrication
When it comes to the drivetrain, the differential lubricant needs to handle high loads and varying temperatures. The front differential GL-5 requires 4.4 pints of 75W-85 lubricant for all temperatures. The rear differential capacities vary by bed configuration: CrewMax 4WD requires 7.6 pints, CrewMax RWD requires 7.9 pints, DCAB with LBED requires 7.9 pints, DCAB with STD Bed requires 7.6 pints, and the Regular Cab rear differential requires 7.6 pints. AMSOIL SEVERE GEAR 75W-85 100% Synthetic Gear Lube is recommended for these applications. It provides advanced protection against wear, controls thermal runaway, and protects against rust and corrosion. This gear lube also helps reduce operating temperatures and extends the life of oil seals and equipment. It contains friction modifiers specifically for limited-slip applications, ensuring optimal performance whether you are driving on pavement or off-road.
Other Fluids and Maintenance
AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is a critical safety component that is often overlooked. For the 2014 Tundra, the recommended brake fluid is DOT 3 and DOT 4. This fluid provides excellent ABS and traction-control responsiveness and maintains a stable viscosity over a wide temperature range, ensuring consistent braking performance. For the power steering system, which requires a fluid meeting the DEXRON-III specification, you can use either the AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid or the AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid. Both options offer excellent protection against sludge, resist harmful contamination, and promote smooth, shudder-free shifts. The OE version specifically guards against leaks, ensuring the system remains pressurized and functional.
For seasonal maintenance and fuel system care, AMSOIL Gasoline Stabilizer helps keep fuel fresh for up to 12 months, protecting against varnish and gum buildup. This is ideal for stored seasonal equipment. AMSOIL Engine Fogging Oil is another essential storage product, providing a highly effective rust preventive for internal engine components during long periods of inactivity. Additionally, AMSOIL P.i. Performance Improver Gasoline Additive can restore up to 14% horsepower and clean GDI fuel injectors to 100% flow rate after just one tank of fuel. This additive improves fuel economy and helps prevent carbon rap and pre-ignition knock, making it a valuable addition to any fuel tank.
About the Vehicle
The 2014 Toyota Tundra is a full-size pickup truck that represents the peak of Toyota’s “T210” generation of trucks. Powered by the massive 5.7L i-FORCE V8 engine, this vehicle is built for heavy-duty work and off-road capability. The 3UR-FBE engine code indicates the Flex Fuel capability, allowing the vehicle to run on gasoline, E85 ethanol, or any mixture in between, offering flexibility for owners who want to reduce fuel costs or utilize alternative fuels. The Tundra is known for its robust frame and suspension, making it a favorite among those who need a truck for serious towing and hauling tasks. With a reputation for reliability, the Tundra has established itself as a strong competitor in the full-size truck market, often cited for its durability and long-term ownership value.
Owners of the 2014 Tundra appreciate its straightforward design and powerful performance. The truck offers a variety of trim levels, ranging from the basic SR to the luxurious Limited, accommodating different needs from commercial work to family hauling. The interior is designed with durability in mind, featuring high-quality materials that can withstand daily wear. The 4WD systems available on this model provide excellent traction in various weather conditions, making it a reliable companion in both snowy winters and muddy trails. The Tundra’s body-on-frame construction ensures that it can handle the stresses of payload and towing without compromising the chassis integrity. This generation of Tundra is also noted for its comfortable ride quality, blending off-road capability with on-road refinement, which has contributed to its strong resale value and loyal customer base.