Olefi n Copolymer Viscosity Modifi ers 309TABLE 10.16
Engine Test Requirements for Interchanging Viscosity Modifi ers within the ATIEL
Code of Practice
Performance Category NDVM to NDVM (1, 2, 3, 4) DVM to DVM or NDVM to DVM (1, 2, 3, 4)
Gasoline TU572 (8) TU572 (8)
M111 or VG (9) M111 or VG (9)
M111FE M111FE
Light-duty diesel VWICTD (9) OM602A
VW DI VWICTD (9)
M111FE XUD11 (12)
VW DI
M111FE
Gasoline/light-duty diesel TU572 (8) TU572 (8)
M111 or VG (9) M111 or VG (9)
VWICTD (9) OM602A
VW DI VWICTD (9)
M111FE XUD11 (12)
VW DI
M111FE
Gasoline/light-duty diesel with after
treatment devicesTU572 (8) TU572 (8)
M111 or VG (9) M111 or VG (9)
VW DI OM602A
M111FE XUD11 (12)
VW DI
M111FE
Heavy-duty diesel OM364LA (10) OM364LA (10)
Mack T8 (6) OM602A
Mack T8E (7) Mack T8
OM 441 LA Mack T8E
M11 (5) (11) OM 441 LA
M11 (5) (11)
Note:- Full testing required for any other viscosity modifi er interchange (VMI) not listed above.
- Physical mixes of non-dispersant viscosity modifi er (NDVM) and DVM are treated as DVM.
- Only the tests included in the ACEA sequence for which read across is required have to be run.
- Where alternative tests are listed, for example, “M111 or VG,” the alternative test cannot be run to document read across
if a failing result has already been obtained on the other test. - Not required if the new oil formulation has the same or greater HTHS value compared with the original tested formulation.
- The Mack T8 requirement is waived, if the replacement NDVM has the same or poorer shear stability as determined on
candidate test oil formulated to similar viscosity as the original NDVM tested formulation and measured by CEC-14-A-
93 (ASTM D 6278-98), and if the requirements of note 7 are also met. - The T8 or T8E requirement is waived, if the replacement NDVM is within the same chemical type as the tested NDVM
(“chemical type” means chemical family such as, but not limited to, styrene ester, polymethacrylate, styrene butadiene,
styrene isoprene, polyisoprene, olefi n copolymer, and polyisobutylene). - TU3MH results can be used in support of A2-96 issue 3 provided the results are passing for A2-96 issue 2.
- The VWICTD may be replaced by the VWDI (with B4 performance limit).
- The OM364LA requirement may be met by a passing OM441LA at E5 level.
- The M11EGR test may be used in place of the M11.
- The XUD 11 test can be replaced by the DV4 test.
Source: Code of Practice for Developing Engine Oils Meeting the Requirements of the ACEA Oil Sequences, ATIEL, Technical
Association of the European Lubricants Industry, Issue No. 13, Appendix C, Brussels, Belgium, November 28, 2005.
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