BMW Z4 2009-2016 Fuel System Specifications

• Premium unleaded gasoline with an octane rating of 91 AKI (95 RON) or higher is required.
• Use of lower octane fuel may result in reduced performance and engine knocking.
• Ethanol blends up to 10% (E10) are acceptable.
• Avoid using diesel or alternative fuels not specified by BMW.

• BMW-approved fuel additives can be used to maintain fuel system cleanliness.
• Avoid using additives containing methanol or metallic compounds.
• Additives should be used in accordance with the manufacturer's recommendations.
• Regular use of additives is not required if using high-quality fuel.

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

• Fuel tank capacity: 14.5 gallons (55 liters).
• Material: High-density polyethylene (HDPE) for durability and corrosion resistance.
• Includes an integrated fuel level sensor for accurate fuel monitoring.
• Designed to minimize fuel evaporation and emissions.

• Electric fuel pump with a flow rate of 120 liters per hour at 5 bar pressure.
• Direct fuel injection system with piezo injectors for precise fuel delivery.
• Injector operating pressure: 200 bar (2900 psi).
• Regular inspection of the fuel pump and injectors is recommended every 30,000 miles.

Note: Fuel pump performance may degrade over time, leading to reduced fuel delivery.

• City fuel economy: 18-20 mpg (13-12 L/100 km).
• Highway fuel economy: 28-30 mpg (8.4-7.8 L/100 km).
• Combined fuel economy: 22-24 mpg (10.7-9.8 L/100 km).
• Fuel efficiency may vary based on driving conditions and vehicle load.

• Complies with Euro 5 and EPA Tier 2 emissions standards.
• CO2 emissions: 180-200 g/km.
• Equipped with a catalytic converter and oxygen sensors for reduced emissions.
• Regular maintenance is required to ensure emissions compliance.

Note: Emissions performance may degrade if the fuel system is not properly maintained.