Subaru Subaru Crosstrek 2018-present Fuel System Specifications

The 2018-Present Subaru Crosstrek is designed to run on regular unleaded gasoline with an octane rating of 87 or higher. Using a higher octane fuel is not necessary and will not improve performance. Subaru recommends avoiding the use of gasoline containing more than 10% ethanol (E10) to prevent potential damage to the fuel system. Always refer to the owner’s manual for specific fuel requirements and compatibility information.

The Subaru Crosstrek requires regular maintenance to ensure optimal performance. Key maintenance intervals include oil changes every 6,000 miles or 6 months, tire rotation every 7,500 miles, and air filter replacement every 12,000 miles. Subaru also recommends inspecting the brake system, coolant, and transmission fluid at regular intervals. Adhering to the maintenance schedule outlined in the owner’s manual will help maintain the vehicle’s reliability and longevity.

Replacing the fuel filter on a Subaru Crosstrek involves several steps. First, locate the fuel filter, typically found near the fuel tank. Disconnect the negative battery terminal for safety. Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. Disconnect the fuel lines and remove the old filter. Install the new filter, reconnect the fuel lines, and reattach the battery terminal. Start the engine and check for leaks. Refer to the service manual for detailed instructions.

If your Subaru Crosstrek is experiencing poor fuel efficiency, start by checking tire pressure, as underinflated tires can reduce mileage. Ensure the air filter is clean and replace it if necessary. Inspect the fuel system for leaks or clogs. Driving habits, such as excessive idling or aggressive acceleration, can also impact fuel economy. If issues persist, have the vehicle inspected by a certified Subaru technician to diagnose potential engine or exhaust system problems.

To optimize fuel performance, maintain proper tire pressure, use the recommended grade of gasoline, and keep the engine well-tuned. Regularly replace air filters and spark plugs. Avoid carrying unnecessary weight and reduce aerodynamic drag by removing roof racks when not in use. Practice smooth acceleration and braking to improve fuel efficiency. Following the maintenance schedule and adhering to Subaru’s recommendations will ensure the vehicle operates at peak performance.