Maintaining your 2023 Toyota GR Supra with a 3.0L turbocharged engine requires precise lubrication to handle the high performance demands of this sportscar. The manufacturer recommends specific fluid types and capacities to ensure longevity and peak power delivery, particularly given the stress placed on the engine by its turbocharger. Using the wrong viscosity or mixing incompatible fluids can lead to reduced fuel economy, increased wear, and potential mechanical failure. For owners seeking to maximize the driving experience and extend service intervals, selecting the correct synthetic lubricants is essential for keeping this vehicle reliable under all driving conditions.
Recommended AMSOIL Products
For the 2023 Toyota GR Supra, the following AMSOIL products are engineered to meet or exceed the vehicle manufacturer’s requirements. These fluids provide superior protection against heat, oxidation, and wear.
- AMSOIL 0W-20 LS 100% Synthetic European Motor Oil – A premium synthetic oil designed specifically for European-style engines with tight tolerances, offering exceptional protection for your turbocharged engine and extended drain intervals.
- WIX Oil Filter – A high-performance filtration option featuring premium media that captures contaminants more effectively than standard filters to protect your engine internals.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Formulated to withstand the rigors of the 8HP51 transmission, this fluid remains fluid in sub-zero temperatures and resists breakdown during spirited driving or heavy towing.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A unique poly-organic acid (OAT) formulation that is ethylene glycol-based and pre-mixed, protecting all cooling system metals and hoses for up to 150,000 miles.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Provides excellent responsiveness for ABS and traction-control systems while maintaining stable viscosity across a wide temperature range for consistent stopping power.
Engine Oil and Filtration
The heart of the 2023 GR Supra is the 3.0-liter inline-six engine, often identified by the code B58B30O1 C Turbo. This engine operates at higher temperatures and pressures than a naturally aspirated unit, making high-quality oil critical. The manufacturer specifies a viscosity of 0W-20 for all temperature conditions. The oil capacity for this engine, when including a filter change, is 6.9 quarts. It is important to note that after refilling the oil, owners should always check the oil level to ensure it is within the proper operating range.
When performing this service, the oil drain plug should be torqued to 18 ft/lbs. Owners are advised to replace the drain plug gasket every time the oil is changed to prevent leaks. For filtration, the WIX Oil Filter (WL10342-EA) is a recommended component. This filter utilizes premium media that offers improvements over original equipment manufacturer (OEM)-branded filters, ensuring that oil circulation remains clean and debris does not circulate through the sensitive turbo bearings or piston rings.
AMSOIL 0W-20 LS 100% Synthetic European Motor Oil is the top choice for this application. It is specifically designed for the unique demands of gasoline, diesel, and hybrid European vehicles, which often share platform and engineering characteristics with the Supra. The precise blend of synthetic base oils and premium additives ensures that the oil remains stable under the extreme heat generated by the turbocharger while providing rapid lubrication on startup to minimize wear.
Transmission and Cooling System Care
The 2023 Toyota GR Supra is equipped with an 8-speed automatic transmission (8HP51….SL188). Maintaining the fluid in this gearbox is vital for smooth shifting and longevity. The total fill capacity for the transmission is 9.6 quarts. Using a synthetic transmission fluid like AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid helps the transmission withstand elevated temperatures and challenging terrain. This fluid provides reserve protection during heavy use and remains fluid even in sub-zero conditions, ensuring crisp shifts regardless of the weather.
The cooling system also requires attention to prevent overheating, which can be a concern in high-performance applications. The engine requires a specific amount of Antifreeze & Coolant, with the high-temperature cooling circuit (HTCC11) holding 11.1 quarts and the low-temperature cooling circuit (LTCC4) holding 4.2 quarts. AMSOIL Passenger Car & Light Truck Antifreeze & Propylene Glycol Antifreeze and Engine Coolant is a phosphate, nitrate, nitrite, silicate, borate, and amine-free formulation. This protects all cooling system metals, gaskets, and hoses and is compatible with all other antifreeze colors, offering flexibility for maintenance or top-offs.
Brake Fluid and Vehicle Safety
For the brake system, specifically noted for models with HBH brakes, the requirement is for a DOT 4 low viscosity brake fluid. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is an excellent choice for this application. It provides excellent responsiveness for both ABS and traction-control systems, which are crucial features in a sports car like the Supra. The fluid maintains a stable viscosity over a wide temperature range, preventing the brake pedal from feeling spongy during hard stops and ensuring the brake system operates efficiently.
About the Vehicle
The 2023 Toyota GR Supra represents a return to form for a legendary sports car lineage that has captivated enthusiasts for decades. The current generation, developed in collaboration with BMW, marks a significant shift in the Supra’s history, moving from a rear-drive coupe to a sophisticated roadster that competes directly with some of the world’s best sports cars. The 3.0-liter model is powered by a twin-scroll turbocharged inline-six engine, a powerplant known for its smooth power delivery and linear torque curve.
Owners of the GR Supra appreciate its balanced handling and engaging driving dynamics. The car features a 50/50 weight distribution, which contributes to its neutral handling characteristics, allowing drivers to push the car’s limits with confidence. Whether used for track days, spirited canyon carving, or daily commuting, the Supra offers a blend of performance and practicality that is rare in its class. The interior is driver-focused, often featuring supportive seats that keep the driver in place during hard cornering, along with modern technology that complements the mechanical excellence of the vehicle.
While the Supra carries the Toyota badge, its engineering roots include components shared with the BMW Z4, resulting in a car that is as robust as it is exciting. The turbocharged engine produces substantial horsepower and torque, making the vehicle incredibly quick off the line and responsive to throttle inputs. This power, combined with a six-speed manual or a rapid-shifting eight-speed automatic transmission, gives the driver the choice between engaging manual control or the seamless speed of an automated gearbox. The GR Supra has established a strong reputation for reliability when properly maintained, making it a favorite among both car enthusiasts and daily drivers who refuse to compromise on performance.