BMW X3 2022-present Fuel System Specifications

• Premium unleaded gasoline with an octane rating of 91 AKI (95 RON) or higher
• Minimum octane rating of 89 AKI (91 RON) is acceptable but may reduce performance
• Use of ethanol blends up to 10% (E10) is approved
• Diesel variants require ultra-low sulfur diesel (ULSD) with a maximum sulfur content of 15 ppm

• BMW recommends using fuel additives that meet BMW specification BMW 13 1 0
• Avoid using additives containing metal compounds or silicone
• Additives should be used sparingly and only as directed
• Regular use of approved additives can help maintain fuel system cleanliness

Note: Using non-approved additives may void the vehicle's warranty.

• Fuel tank capacity: 17.2 gallons (65 liters)
• Material: High-density polyethylene (HDPE) with integrated baffles
• Includes a fuel level sensor with a precision of ±2%
• Designed to withstand pressures up to 10 psi (69 kPa)

• Electric fuel pump with a flow rate of 120 liters per hour (31.7 gallons per hour)
• High-pressure fuel injectors with a maximum pressure of 2900 psi (200 bar)
• Injectors feature a multi-hole design for precise fuel delivery
• Fuel pump is located inside the fuel tank for cooling and noise reduction

Note: The fuel pump is controlled by the engine control unit (ECU) for optimal performance.

• EPA-estimated fuel economy: 25 mpg city / 29 mpg highway (gasoline models)
• Diesel models achieve up to 31 mpg combined
• Hybrid variants offer an electric-only range of up to 30 miles
• Start-stop technology improves fuel efficiency in urban driving conditions

• Complies with Euro 6d-TEMP and EPA Tier 3 emissions standards
• CO2 emissions: 172 g/km (gasoline models), 142 g/km (diesel models)
• Equipped with a particulate filter for diesel variants
• Selective catalytic reduction (SCR) system reduces NOx emissions

Note: Regular maintenance is required to ensure emissions systems function correctly.