Audi A6 Typ 4G: Blended gasoline
Applies to: vehicles with gasoline engine
Use of gasoline containing alcohol or MTBE (methyl tertiary butyl ether)
You may use unleaded gasoline blended with alcohol or MTBE (commonly referred to as oxygenates) if the blended mixture meets the following criteria:
Blend of gasoline methanol (wood alcohol or methyl alcohol)
- Anti-knock index must be 87 AKI or higher.
- Blend must contain no more than 3% methanol.
- Blend must contain more than 2% co-solvents
Blend of gasoline and ethanol (grain alcohol or ethyl alcohol)
- Anti-knock index must be 87 AKI or higher.
- Blend must not contain more than 15% ethanol.
Blend of gasoline and MTBE
- Anti-knock index must be 87 AKI or higher.
- Blend must contain not more than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform especially well for winter or summer driving. During seasonal change-over, we suggest that you fill up at busy gas stations where the seasonal adjustment is more likely to be made in time.
Note
- Methanol fuels which do not meet these requirements may cause corrosion and damage to plastic and rubber components in the fuel system.
- Do not use fuels that fail to meet the specified criteria in this chapter.
- If you are unable to determine whether or not a particular fuel blend meets the specifications, ask your service station or its fuel supplier.
- Do not use fuel for which the contents cannot be identified.
- Fuel system damage and performance problems resulting from the use of fuels different from those specified are not the responsibility of Audi and are not covered under the New Vehicle or the Emission Control System Warranties.
- If you experience a loss of fuel economy or driveability and performance problems due to the use of one of these fuel blends, we recommend that you switch to unblended fuel.
Gasoline additives
A major concern among many auto manufacturers is carbon deposit build-up caused by the type of gasoline you use.
Although gasoline grades differ from one manufacturer to another, they have certain things in common. All gasoline grades contain substances that can cause deposits to collect on vital engine parts, such as fuel injectors and intake valves. Although most gasoline brands include additives to keep engine and fuel systems clean, they are not equally effective.
Audi recommends using TOP TIER Detergent Gasoline.
For more information on TOP TIER Detergent Gasoline, please go to the official website (www.toptiergas.com).
After an extended period of using inadequate fuels, carbon deposit build-ups can rob your engine of peak performance.
Note
Damage or malfunction due to poor fuel quality is not covered by the Audi New Vehicle Limited Warranty.
