The 2014 Scion IQ with the 1.3-liter 1NR-FE engine is a unique compact vehicle designed for urban agility and maximum fuel efficiency. To keep this smart car running smoothly for thousands of miles, selecting the correct lubricants is essential. The 1NR-FE engine relies on a specific 0W-20 viscosity grade to ensure proper lubrication during cold starts and to maintain optimal fuel economy across varying temperatures. Using a high-quality synthetic motor oil formulated for extended protection is the best way to safeguard the engine against wear, sludge, and the effects of stop-and-go city driving. Beyond the engine, the vehicle’s continuously variable transmission (CVT) and cooling system also require specific fluids to function correctly and prevent costly repairs down the road.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – The top choice for maximum engine protection against horsepower loss and wear, offering up to 25,000 miles of protection.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – Provides superior cleaning power and protection against LSPI for up to 20,000 miles between changes.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – A budget-friendly synthetic option that effectively fights sludge and deposits with a high-performance formulation.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Specifically designed for vehicles with over 75,000 miles to reduce sludge and boost cleaning power.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A 50/50 pre-mix formulation that protects cooling system metals and components for up to 150,000 miles or 5 years.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated option that requires mixing with distilled water, offering extended protection up to 150,000 miles or 5 years.
- AMSOIL 100% Synthetic CVT Fluid – Delivers exceptional metal-to-metal frictional properties for the K41B transmission to ensure smooth shifting and longevity.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Offers excellent ABS and traction-control responsiveness with a stable viscosity across a wide temperature range.
Engine Oil Selection and Capacities
The heart of the 2014 Scion IQ is the 1.3-liter four-cylinder engine, specifically the 1NR-FE variant. This engine is designed with tight tolerances and a focus on fuel efficiency, making the choice of motor oil critical for both performance and longevity. The manufacturer recommends a viscosity grade of 0W-20 for all operating temperatures. This specific weight provides the optimal balance of fluidity for cold starts and film strength to protect engine components under load.
When servicing the engine, it is important to note the fluid capacity. The 2014 Scion IQ requires 3.7 quarts of motor oil when including a new oil filter. After refilling the engine, it is crucial to check the oil level on the dipstick to ensure it falls within the correct operating range. To secure the drain plug during the oil change process, a torque specification of 22 ft/lbs should be applied. Additionally, installing a new washer on the drain bolt is a recommended best practice to prevent leaks. AMSOIL offers four distinct 0W-20 synthetic options to suit different vehicle ages and driving needs.
Transmission Fluid and Coolant Systems
Maintaining the transmission in your Scion IQ is just as vital as caring for the engine. This compact vehicle utilizes a CVT (Continuously Variable Transmission) with the transmission code K41B. The automatic transmission requires a full fill of 6.6 quarts of transmission fluid, while the initial fill capacity is approximately 0.4 quarts. Using the correct fluid is essential because the CVT relies on specific frictional properties to function smoothly without slipping or grinding. AMSOIL 100% Synthetic CVT Fluid is engineered to provide the precise frictional characteristics needed for this transmission type, ensuring long-term durability even under severe driving conditions.
The cooling system also plays a major role in the vehicle’s reliability. The 2014 Scion IQ holds 5.2 quarts of coolant. Over time, coolant can lose its anti-corrosion properties, leading to potential damage to the radiator, water pump, and engine block. AMSOIL offers two primary coolant solutions. The Passenger Car & Light Truck Antifreeze & Coolant comes as a 50/50 pre-mix, meaning it is ready to use immediately upon pouring into the system. This formulation is designed to exceed original equipment manufacturer requirements and is compatible with all cooling system metals, gaskets, and hoses. For those who prefer to mix their own, the Propylene Glycol Antifreeze and Engine Coolant is a concentrated option that offers the same high level of protection but requires mixing with distilled or high-quality water.
Brake Fluid and Essential Maintenance
Safety is paramount for any vehicle, and the braking system is where performance is most critical. The hydraulic brake system in the 2014 Scion IQ requires a DOT 3 compatible fluid. AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is an excellent choice for this application. Synthetic brake fluid is superior to traditional fluids because it has a much higher boiling point, which prevents vapor lock during hard braking. This fluid also features excellent responsiveness for ABS and traction control systems, ensuring the vehicle stops reliably in all weather conditions.
About the 2014 Scion IQ
The 2014 Scion IQ represents a unique chapter in the automotive world, originating from Toyota’s global strategy to create a highly efficient and affordable urban commuter vehicle. Based on the Toyota e-BBox platform, the Scion IQ was a compact hatchback that packed a surprising amount of engineering into a very small footprint. It was powered by the 1.3-liter 1NR-FE four-cylinder engine, a unit known for its reliability and fuel efficiency. This engine delivered sufficient power for city navigation while achieving excellent gas mileage, making it a favorite for students, urban professionals, and anyone needing a practical second car.
Despite its diminutive size, the Scion IQ featured a clever design that maximized interior space. The car offered a surprisingly roomy cabin, capable of seating four passengers comfortably, with unique storage solutions like sliding rear seats that allowed for flexible cargo and passenger configurations. The vehicle’s tight turning radius made it exceptionally agile in congested city streets, parking lots, and narrow alleys. While the Scion brand itself was discontinued by Toyota in the United States in 2016, the IQ remains a beloved vehicle for those who appreciate its distinct character and practicality. Owners of the 2014 model continue to value its blend of Toyota’s legendary reliability and Scion’s youthful, budget-friendly appeal.