Audi Audi Q8 2018-present

Audi Audi Q8 2018-present Fuel System Specifications

Detailed technical specifications and maintenance guidelines for the fuel system of the 2018-Present Audi Q8. Learn about fuel type requirements, fuel delivery components, and advanced fuel injection technology.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the fuel specifications for the 2018-Present Audi Q8, including key features, measurements, and technical details. This section provides detailed information on fuel types, fuel system components, and performance specifications to ensure optimal vehicle operation.

How to Use

Use the search function to locate specific fuel specifications by entering keywords such as 'fuel type', 'fuel capacity', or 'fuel system pressure'.

Navigate through the fuel documentation sections using the table of contents or by scrolling through the document. Each section is clearly labeled for easy access.

Key Specifications

Fuel Tank Capacity

85 liters (22.5 gallons)

Fuel Pump Pressure

200 bar (2900 psi)

Combined Fuel Economy

10.0 L/100 km (23.5 mpg)

CO2 Emissions

230 g/km

Available Specifications

Fuel Types and Requirements

This section outlines the recommended fuel types and requirements for the Audi Q8, including octane ratings and fuel additives.

Recommended Fuel Types

Premium unleaded gasoline with an octane rating of 91 or higher
Ethanol blends up to E10 (10% ethanol) are acceptable
Diesel fuel is not compatible with the Audi Q8
Use of lower octane fuel may result in reduced performance and engine knocking

Fuel Additives

Audi recommends using Top Tier detergent gasoline to maintain engine cleanliness
Avoid using fuel additives containing metal compounds
Do not use fuel system cleaners unless approved by Audi
Regular use of approved additives can help prevent carbon buildup

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

Fuel System Components

This section provides detailed information on the fuel system components, including the fuel tank, fuel pump, and injectors.

Fuel Tank Specifications

Fuel tank capacity: 85 liters (22.5 gallons)
Material: High-density polyethylene (HDPE)
Includes an integrated fuel filter with a service interval of 60,000 miles
Equipped with a rollover valve for safety

Fuel Pump and Injectors

High-pressure fuel pump with a maximum pressure of 200 bar (2900 psi)
Direct fuel injection system for precise fuel delivery
Injector flow rate: 15 cc/min at 3 bar pressure
Fuel pump power consumption: 80 watts

Note: Regular inspection of the fuel pump and injectors is recommended to ensure optimal performance.

Fuel Efficiency and Performance

This section covers the fuel efficiency and performance metrics for the Audi Q8, including consumption rates and emissions.

Fuel Consumption Rates

City driving: 12.5 L/100 km (18.8 mpg)
Highway driving: 8.5 L/100 km (27.7 mpg)
Combined fuel economy: 10.0 L/100 km (23.5 mpg)
Range: Approximately 850 km (528 miles) on a full tank

Emissions and Environmental Impact

CO2 emissions: 230 g/km
Complies with Euro 6 emissions standards
Equipped with a gasoline particulate filter (GPF)
AdBlue system for reduced NOx emissions

Note: Regular maintenance is required to ensure compliance with emissions standards.

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Component Specifications

Fuel Type

Recommended Fuel: Premium unleaded gasoline (95 RON or higher)

Minimum Octane Rating: 91 RON

Alternative Fuel: E10 (10% ethanol blend) acceptable

Fuel Tank Capacity: 85 liters

Fuel System: Direct injection with turbocharging

Fuel Pump

Part Number: 4M0919091B

Flow Rate: 120 liters/hour

Operating Pressure: 5.5 bar

Voltage: 12V

Current Draw: 8A

Fuel Filter

Part Number: 4M0201051A

Replacement interval: Every 60,000 miles or 60 months

Filter Type: In-line cartridge

Micron Rating: 10 microns

Pressure Drop: 0.3 bar max

Fuel injectors

Part Number: 06E906036E

Flow Rate: 200 cc/min at 3 bar

Spray Pattern: Multi-hole

Operating Pressure: 200 bar

Resistance: 12 ohms

Fuel Tank

Material: High-density polyethylene

Capacity: 85 liters

Vent System: Closed-loop with charcoal canister

Pressure Rating: 0.5 bar

Safety Features: Rollover valve and impact sensor

Fuel Pressure Regulator

Part Number: 06E906051K

Operating Pressure: 4.0 bar

Tolerance: +/- 0.2 bar

Location: Integrated into fuel rail

Function: Maintains consistent fuel pressure

Fuel Rail

Part Number: 06E133201F

Material: Aluminum

Pressure Rating: 250 bar

injector Connection: Quick-connect fittings

Sensor integration: Fuel pressure sensor included

Fuel Pressure Sensor

Part Number: 06E906051K

Operating Range: 0-250 bar

Output Signal: 0.5-4.5V

Accuracy: +/- 1%

Location: Mounted on fuel rail

Fuel System Diagnostics

Diagnostic Tool: Audi VAS 6150 or equivalent

Error Codes

P0171 - System too lean
P0172 - System too rich
P0190 - Fuel rail pressure sensor circuit
P0087 - Fuel rail/system pressure too low

Test Procedures

Check fuel pressure with diagnostic tool
Inspect fuel injectors for clogging
Verify fuel pump operation
Check for leaks in fuel lines

Safety Precautions

Depressurize fuel system before servicing
Avoid open flames or sparks
Use approved fuel handling equipment

Fuel System Maintenance

inspection Interval: Every 30,000 miles or 24 months

Maintenance Tasks

Replace fuel filter
Inspect fuel lines for leaks
Clean fuel injectors
Check fuel pump operation

Recommended Additives

Audi fuel system cleaner (part number: G001770M3)
Octane booster for low-quality fuel

Notes

Use only Audi-approved additives
Avoid prolonged use of ethanol blends above E10

Service Information Service

Detailed service requirements and schedules for the fuel system

30,000 miles

24 months

Inspect fuel lines and connections
Check fuel pump operation
Inspect fuel injectors

Perform visual inspection for leaks and wear

60,000 miles

60 months

Replace fuel filter
Clean fuel injectors
Check fuel pressure regulator

Use Audi-approved parts and procedures

100,000 miles

120 months

Inspect fuel tank for damage
Replace fuel pump if necessary
Check fuel rail pressure sensor

Perform comprehensive fuel system diagnostics

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of fuel is recommended for the 2018-Present Audi Q8?

The 2018-Present Audi Q8 is designed to run on premium unleaded gasoline with an octane rating of 91 or higher. Using lower octane fuel may result in reduced performance and efficiency.

What is the fuel tank capacity of the Audi Q8?

The Audi Q8 has a fuel tank capacity of 22.5 gallons (85 liters). This allows for an estimated range of approximately 500-600 miles depending on driving conditions and engine configuration.

Can I use ethanol-blended fuel in the Audi Q8?

The Audi Q8 is compatible with ethanol-blended fuels containing up to 10% ethanol (E10). Using fuels with higher ethanol content, such as E85, is not recommended and may cause engine damage.

What is the fuel economy of the Audi Q8?

The fuel economy varies by engine type. For the 3.0L TFSI V6 engine, the estimated fuel economy is 17 mpg city, 22 mpg highway, and 19 mpg combined. For the 4.0L TFSI V8 (SQ8), the estimated fuel economy is 14 mpg city, 19 mpg highway, and 16 mpg combined.

Does the Audi Q8 require any fuel additives?

Audi does not recommend the use of fuel additives for the Q8. The vehicle's fuel system is designed to operate efficiently with premium unleaded gasoline without additional additives.

What happens if I accidentally use diesel fuel in the Audi Q8?

Using diesel fuel in a gasoline engine like the Audi Q8 can cause severe damage to the fuel system and engine. If this occurs, do not start the vehicle and contact an authorized Audi service center immediately for assistance.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Audi Fuel System Maintenance Guide

Coming Soon

Learn about proper fuel system maintenance, including fuel filter replacement and injector cleaning, to ensure optimal performance.

Understanding Octane Ratings

Coming Soon

A detailed explanation of octane ratings and why premium fuel is recommended for high-performance vehicles like the Audi Q8.

Audi Q8 Owner's Manual

Coming Soon

The official owner's manual for the Audi Q8, containing detailed information on fuel specifications, maintenance schedules, and safety warnings.

Fuel Efficiency Tips for Audi Q8

Coming Soon

Practical tips to improve fuel efficiency and reduce emissions while driving your Audi Q8.

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