Where claims are made that Oil performance meets the requirements of the ACEA sequences (e.g. product literature,
packaging, labels) they must specify the ACEA Class and Category (see Nomenclature & ACEA Process for definitions).
«Consumer Language»:
A/B : gasoline and diesel engine oils
A1/B1 Oil intended for use in gasoline and car + light van diesel engines specifically designed to be capable of using
low friction low viscosity oils with a High temperature / High shear rate viscosity of 2.6 to 3.5 mPas.s. These oils may be
unsuitable for use in some engines. Consult owner manual or handbook if in doubt.
A3/B3 Stable, stay-in-grade oil intended for use in high performance gasoline and car + light van diesel engines and/or
for extended drain intervals where specified by the engine manufacturer, and/or for year-round use of low viscosity oils ,
and/or for sever operating conditions as defined by the engine manufacturer.
A3/B4 Stable, stay-in-grade oil intended for use in high performance gasoline and direct injection diesel engines, but
also suitable for applications described under B3.
A5/B5 Stable, stay-in-grade oil intended for use at extended drain intervals in high performance gasoline and car + light
van diesel engines designed to be capable of using low friction low viscosity oils with a High temperature / High shear
rate viscosity of 2.9 to 3.5 mPa.s. These oils may be unsuitable for use in some engines. Consult owner manual or
handbook if in doubt.
C : Catalyst compatibility oils
C1 Stable, stay-in-grade oil intended for use as catalyst compatible oil in vehicles with DPF and TWC in high
performance car and light van diesel and gasoline engines requiring low friction, low viscosity, low SAPS oils with a
HTHS higher than 2.9 mPa.s. These oils will increase the DPF and TWC life and maintain the vehicles fuel economy.
Warning : these oils have the lowest SAPS limits and may be unsuitable for use in some engines. Consult owner manual
or handbook if in doubt.
C2 Stable, stay-in-grade oil intended for use as catalyst compatible oil in vehicles with DPF and TWC in high
performance car and light van diesel and gasoline engines designed to be capable of using low friction, low viscosity oils
with a HTHS higher than 2.9 mPa.s. These oils will increase the DPF and TWC life and maintain the vehicles fuel
economy.
Warning : these oils may be unsuitable for use in some engines. Consult owner manual or handbook if in doubt.
C3 Stable, stay-in-grade oil intended for use as catalyst compatible oil in vehicles with DPF and TWC in high
performance car and light van diesel and gasoline engines. These oils will increase the DPF and TWC duration.
Warning : these oils may be unsuitable for use in some engines. Consult owner manual or handbook if in doubt.
SAPS : Sulphated Ash, Phosphorus, Sulphur
DPF : Diesel Particulate Filter
TWC : Three way catalyst
HTHS : High temperature / High shear rate viscosity
Page 6 of 15 All Rights reserved. ACEA, Brussels. 2004 oil sequences Rev. 1.doc: 28/09/05
ACEA ACEA 2004 EUROPEAN OIL SEQUENCES FOR SERVICE-FILL OILS Oct. 2004
E : Heavy Duty Diesel engine oils
E2 General purpose oil for naturally aspirated and turbocharged heavy duty diesel engines, medium to heavy duty
cycles and mostly normal oil drain intervals.
E4 Stable, stay-in-grade oil providing excellent control of piston cleanliness, wear, soot handling and lubricant
stability. It is recommended for highly rated diesel engines meeting Euro 1, Euro 2, Euro 3 and Euro 4 emission
requirements and running under very severe conditions, e.g. significantly extended oil drain intervals according to the
manufacturer’s recommendations. It is suitable for engines without particulate filters, and for some EGR engines and
some engines fitted with SCR NOx reduction systems. However, recommendations may differ between engine
manufacturers so Driver Manuals and/or Dealers shall be consulted if in doubt.
E6 Stable, stay-in-grade oil providing excellent control of piston cleanliness, wear, soot handling and lubricant
stability. It is recommended for highly rated diesel engines meeting Euro 1, Euro 2, Euro 3 and Euro 4 emission
requirements and running under very severe conditions, e.g. significantly extended oil drain intervals according to the
manufacturer’s recommendations. It is suitable for EGR engines, with or without particulate filters, and for engines fitted
with SCR NOx reduction systems. E6 quality is strongly recommended for engines fitted with particulate filters and is
designed for use in combination with low sulphur diesel fuel (max 50 ppm). However, recommendations may differ
between engine manufacturers so Driver Manuals and/or Dealers shall be consulted if in doubt.
E7 Stable, stay-in-grade oil providing effective control with respect to piston cleanliness and bore polishing. It further
provides excellent wear and turbocharger deposit control, soot handling and lubricant stability. It is recommended for
highly rated diesel engines meeting Euro 1, Euro 2, Euro 3 and Euro 4 emission requirements and running under severe
conditions, e.g. extended oil drain intervals according to the manufacturer’s recommendations. It is suitable for engines
without particulate filters, and for most EGR engines and most engines fitted with SCR NOx reduction systems.
However, recommendations may differ between engine manufacturers so Driver Manuals and/or Dealers shall be consulted if in doubt.