Understanding the 2017 Subaru Impreza oil capacity is fundamental to maintaining the longevity and performance of this reliable compact sedan. The specific volume of lubricant required ensures the horizontally-opposed "Boxer" engine operates under optimal conditions, providing the balance and safety the model is known for. This figure is not arbitrary; it is calculated to provide adequate lubrication for every component while preventing overfilling that can lead to increased pressure and potential seal damage.
Factory Specifications for 2017 Models
For the 2017 model year, Subaru provided precise oil capacity figures to accommodate the standard and turbocharged variants of the Impreza. When checking or changing the oil without draining the filter, the typical capacity falls within a specific range to ensure proper lubrication throughout the engine's lifecycle. Adhering to these specifications is crucial for maintaining the warranty and ensuring the vehicle operates at peak efficiency, especially given the all-weather capabilities of the Symmetrical All-Wheel Drive system.
Standard Non-Turbo Capacity
The base models and lower trims of the 2017 Impreza, equipped with the naturally aspirated 2.0-liter engine, generally have an oil capacity of approximately 4.2 to 4.5 quarts. This volume is sufficient to coat the internals of the 2.0-liter Boxer engine and provide a cushion for the oil filter replacement. Always verify the exact amount during an oil change by checking the dipstick after adding the bulk of the fluid, as the filter's design can slightly alter the total capacity.
Turbocharged Model Requirements
For enthusiasts who opted for the turbocharged 2.0-liter variant found in the WRX and limited trims, the oil capacity increases slightly due to the added stress and cooling requirements of the forced induction system. These models typically require between 4.5 to 4.9 quarts of oil. The turbocharger relies on a steady supply of lubrication to manage the higher temperatures and rotational speeds, making the correct oil volume critical for preventing premature wear and ensuring the longevity of the boost system.
Oil Type and Specification
Beyond volume, the 2017 Impreza requires specific oil characteristics to function properly. Subaru recommends using a 5W-20 viscosity grade for most operating conditions, as this provides the right balance of fuel efficiency and protection. Look for the API SN or SM service rating, or better yet, the Subaru-approved specification "STI 220" to ensure the detergent package and performance meet the demands of the Subaru engine design.
The Role of the Oil Filter
When calculating total oil capacity, one must factor in the oil filter. A standard spin-on filter holds roughly 0.3 to 0.5 quarts of oil. Consequently, if you are draining the old filter and installing a new one, you will need slightly more oil than if you were simply topping off an existing filter. Failing to account for the filter's capacity can result in an underfilled engine, leading to poor lubrication and potential engine damage over time.
Checking and Maintenance Tips
Regularly checking the oil level is a simple procedure that every owner should perform. With the vehicle on level ground and the engine cool or at operating temperature (following the manufacturer's guidance for an accurate dipstick read), locate the dipstick, wipe it clean, reinsert it fully, and pull it out again. The oil level should be between the "MIN" and "MAX" hash marks. If it is low, add the recommended oil incrementally, rechecking the level to avoid overfilling.
