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To: API Lubricants Group Cc: Lubricants Group Mailing List

API Ballot for Technical Principles for New Viscosity Grades and Read Across At the October 11, 2018 Lubricants Standards Group (LSG) Meeting the Lubricants Group reviewed the BOI/VGRA Task Force Proposal 6-Sequence X Technical Principles Read Across Table. Revised Proposal 6 establishes Table F-y—Technical Principles for New Viscosity Grades and Read Across for new viscosity grades.

BOI/VGRA Revised Proposal 6 is given in Attachment 1, page 4. The Motion to Ballot BOI/VGRA Revised Proposal 6 is given on Attachment 1, Page 5. Background Information can be found Attachment 1, pages 6-10. After review and discussion, the LSG agreed by voice vote to Ballot Table F-y—Technical Principles for New Viscosity Grades and Read Across.

• Motion to Ballot Proposal 6 Table F-y—Technical Principles for New Viscosity Grades and Read Across

Motion by: Eric Kalberer

Second: Josh Frederick

Voice Vote: For = 17 | Against = 0 | Abstain = 0

Motion Passed

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Lubricants Group Members should use the API eBallot System to cast their vote and make comments. The eBallot Link is: http://Ballots.api.org. The Lubricants Group Member votes will be counted, and all received comments reviewed and considered before the ballot results are final. Non-Lubricants Group Members should comment on the Ballot Motion using the eBallot system. The eBallot Link is: http://Ballots.api.org. All comments on the Ballot Motion will be reviewed before the ballot results are final. This eBallot will close on November 30, 2018. All Votes and/or Comments must be received by the close date.

Attachment 1Proposal 6 Technical Principles for New Viscosity Grades

and Read Across

API Lubricants GroupBOI VGRA Task Force Proposals 5, 6

Sequence X VGRA

October 11, 2018

1

2

Proposal 5:Sequence X VGRA Read Table RecommendationAdd Table F.xx to Annex F

Table F-xx Groups II, III and IV Viscosity Read Across: Sequence X Test

Note: 1. Tested formulations containing Group I and/or Group V stocks must contain an equal amount of the same base stock in the

finished oil blend for application of viscosity grade read-across

Can Be “Read-Across1” to:

Test Run on 0W-16 0W-20 5W-20 5W-30 10W-30 10W-40

0W-16 NA X X X X X

0W-20 X NA X X X X

5W-20 X X NA X X X

5W-30 X X X NA X X

10W-30 X X X X NA X

10W-40 X X X X X NA

3

Proposal 6:New VGRA Technical Principles TableAdd Table F.y to Annex F

Table F-y—Technical Principles for New Viscosity Grades and Read Across

Passenger Car Motor Oils X

a Detergent (dispersant)- inhibitor (DI) content of the read-across viscosity grade shall be equal to or higher than that of the original viscosity grade. The increase in DI is limited to the maximum allowed by the ACC Code

b Base stock blend kinematic viscosity at 100°C of the read-across viscosity grade must be equal to or higher than that of the original viscosity grade, considering the precision of the test method

NA

c The viscosity modifier (VM) content of the read-across viscosity grade must be equal to or lower than that of the original viscosity grade

Note 3

Applies to oils with HTHS150 ≥ 2.3 mPa•s

1. = principle is applicable; NA = not applicable.2. New viscosity grades and associated read-across can only be added after review by the API BOI/VGRA Task Force and approval by the API

Lubricants Group.3. Viscosity Modifier content must be no more than 1.7 times higher than viscosity modifier content in the oil on which test was run4. For dispersant-type VM, the VM content of the read-across viscosity grade must be equal to or higher than the original viscosity grade.5. Read-across viscosity grades must contain an equal amount of the same Group V base stock (e.g., ester) in the finished oil blend if a Group V

base stock is used in the original viscosity grade

4

Revised Proposal 6:New VGRA Technical Principles TableAdd Table F.y to Annex F

Table F-y—Technical Principles for New Viscosity Grades and Read Across

Passenger Car Motor Oils X

a Detergent (dispersant)- inhibitor (DI) content of the read-across viscosity grade shall be equal to or higher than that of the original viscosity grade. The increase in DI is limited to the maximum allowed by the ACC Code

b Base stock blend kinematic viscosity at 100°C of the read-across viscosity grade must be equal to or higher than that of the original viscosity grade, considering the precision of the test method

NA

c The viscosity modifier (VM) content of the read-across viscosity grade must be equal to or lower than that of the original viscosity grade

Note 3

Applies to oils with HTHS150 ≥ 2.3 mPa•s

1. = principle is applicable; NA = not applicable.2. New viscosity grades and associated read-across can only be added after review by the API BOI/VGRA Task Force and approval by the API

Lubricants Group.3. Viscosity Modifier content must be no more than 1.7 times higher than viscosity modifier content in the oil on which the test was run because

this was the highest level of VM tested in the BOI/VGRA Matrix.4. For dispersant-type VM, the VM content of the read-across viscosity grade must be equal to or higher than the original viscosity grade.5. Read-across viscosity grades must contain an equal amount of the same Group V base stock (e.g., ester) in the finished oil blend if a Group V

base stock is used in the original viscosity grade

Motion to BallotMotion to Ballot the BOI/VGRA Task Force Revised Proposal 6 for Technical Principles Table for Seq. X.

• Motion by Eric Kalberer• Second Josh Frederick• For = 17 Against = 0 Abstain = 0

5

Background Information

6

Seq. X BOI/VGRA Matrix Statisticians ReportSept. 18, 2018

7

Seq. X BOI/VGRA Matrix Statisticians ReportSept. 18, 2018

8

Seq. X BOI/VGRA Matrix Statisticians ReportSept. 18, 2018

9

Seq. X : Impact of Relative Viscosity Modifier Treat Level

10

0.02

0.04

0.06

0.08

0.1

0.12

0.14

0.16

0.18

0.5 1.0 1.5 2.0

Tech 270

Cha

in S

tret

ch(R

aw)

6 results

Error bars reflect σ applied to average at each VM level

Average

0.02

0.04

0.06

0.08

0.1

0.12

0.14

0.16

0.18

0.5 1.0 1.5 2.0

Tech 2717 results

Error bars reflect σ applied to average at each VM level

Grp II Slate K4.2 cSt BOV

Grp III Slate D4.9 cSt BOV

Grp III Slate D6.2 cSt BOV

Average

0.02

0.04

0.06

0.08

0.1

0.12

0.14

0.16

0.18

0.5 1.0 1.5 2.0

Tech 101118 results

Error bars reflect σ applied to average at each VM level

Grp III Slate D4.2 cSt BOV

Average

All test data included

Additional information provided by ExxonMobil post BOI/VGRA Recommendation and not part of the Statistician’s Report.