A3/B4 Stable, stay-in-grade engine oil intended for use in passenger car and light-duty gasoline &
diesel engines and/or for extended oil drain intervals where specified by the engine
manufacturer.
A5/B5 Stable, stay-in-grade engine oil intended for use at extended oil drain intervals in passenger car
and light-duty gasoline & DI diesel engines designed for low viscosity engine oils with HTHS
viscosity of 2.9 to 3.5 mPa·s. These engine oils are unsuitable for use in certain engines -
consult vehicle-OEM’s owner’s manual/handbook in case of doubt.
A7/B7 Stable, stay-in-grade engine oil intended for use at extended oil drain intervals in passenger car
and light-duty gasoline & DI diesel engines designed for low viscosity engine oils with HTHS
viscosity of 2.9 to 3.5 mPa·s. Relative to A5/B5 these engine oils provide also low speed pre-
ignition- and wear protection for turbocharged gasoline DI engines as well as turbocharger
compressor deposit (TCCD) protection for modern DI diesel engines. These engine oils are
unsuitable for use in certain engines - consult vehicle-OEM’s owner’s manual/handbook in case
of doubt.
C2Stable, stay-in-grade engine oil with mid-SAPS Level, for aftertreatment system compatibility.
Intended for use at extended oil drain intervals in passenger car and light-duty gasoline & DI
diesel engines designed for low viscosity engine oils with a minimum HTHS Viscosity of 2.9
mPa⋅s.
C3Stable, stay-in-grade engine oil with mid-SAPS Level, for aftertreatment system compatibility.
Intended for use at extended oil drain intervals in passenger car and light-duty gasoline & DI
diesel engines designed for engine oils with HTHS viscosity of minimum 3.5 mPa⋅s.
C4Stable, stay-in-grade engine oil with low-SAPS Level, for aftertreatment system compatibility.
Intended for use at extended oil drain intervals in passenger car and light-duty gasoline & DI
diesel engines designed for engine oils with HTHS viscosity of minimum 3.5 mPa⋅s.
C5Stable, stay-in-grade engine oil for improved fuel economy, with mid-SAPS Level, for
aftertreatment system compatibility. Intended for use at extended oil drain intervals in passenger
car and light-duty gasoline & DI diesel engines designed and OEM-approved for engine oils with
HTHS viscosity of minimum 2.6 mPa⋅s.
C6Stable, stay-in-grade engine oil for improved fuel economy, with mid-SAPS Level, for
aftertreatment system compatibility. Intended for use at extended oil drain intervals in passenger
car and light-duty gasoline & DI diesel engines designed and OEM-approved for engine oils with
HTHS viscosity of minimum 2.6 mPa⋅s. Relative to C5 these engine oils provide also low speedpre-ignition- and wear protection for turbocharged gasoline DI engines as well as turbocharger
compressor deposit (TCCD) protection for modern DI diesel engines.
C7
Stable, stay-in-grade engine oil for improved fuel economy, with mid-SAPS Level, for
aftertreatment system compatibility. Intended for use at extended oil drain intervals in passenger
car and light-duty gasoline & DI diesel engines designed and OEM-approved for engine oils with
HTHS viscosity of minimum 2.3 mPa·s. C7 is based on C6 performance levels, with the exception
of enhanced fuel economy.