To: API Lubricants Group Cc: Lubricants Group Mailing List API Lubricants Group eBallot on Revision of Seq. IIIH to Seq. IIIG Equivalency for API SN At the February 8, 2017 Lubricants Group meeting a revision to the Seq. IIIH to IIIG Equivalency for API SN was discussed. After a review of the CLOG Recommendations and the data analysis a motion was made to revise the Sequence IIIH to IIIG Equivalency for API SN. The Motion to Ballot is given below:

Ballot Motion Sequence IIIH is acceptable for inclusion as an alternate to the Sequence IIIG in API SN with the following limits:

• pVis = 150 % max. • WPD = 4.0 min. • No Hot Stuck Rings

Motion by: Ron Romano Second: Matthew Ansari Approve=11 Negative=4 Abstain=2

The LG Approved the Ballot Motion by majority vote and agreed to send an eBallot to revise the Seq. IIIH to Seq. IIIG Equivalency for API SN. A draft of the revised Table G-5 is included on the eBallot website. Also included is the Clog Recommendation and the Seq. IIIH to Seq. IIIG Equivalency data analysis. 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 may comment on the Ballot Motion using the eBallot system. The eBallot Link is: http://Ballots.api.org All received comments on the Ballot Motion will be reviewed before the ballot results are final. This eBallot will close on March 28, 2017. All Votes and Comments must be received by the close date. If approved the Effective Date of the Change to API 1509 will February 8, 2017.

CLOG Recommendations for Seq. IIIH to Seq. III G

10/12/2016

Seq. IIIH to Seq. IIIG

PROPOSED OPTIONS

#1 Seq. IIH to Seq. IIIG – pVis = 150 %

– WPD = 4.0

#2 Seq. IIIH to Seq. IIIG – pVis = 150 %

– WPD = 3.7

Seq. IIIHA to Seq. IIIGA

PROPOSED ROBO

ROBO for Equivalency to Seq. IIIGA

Seq. IIIHB to Seq. IIIGB

PROPOSED Seq. IIIGB Phosphorus Limit

Phosphorus Limit = 80.5

IIIG Equivalent Limit in IIIH

Statistics Group March 14, 2016

Statistics Group

• Art Andrews, Exxon Mobil • Martin Chadwick, Intertek • Jo Martinez, Chevron Oronite • Richard Grundza, TMC • Travis Kostan, SwRI • Lisa Dingwell, Afton Chemical • Todd Dvorak, Afton Chemical • Doyle Boese, Infineum • Kevin O’Malley, Lubrizol

Summary

IIIG Period WPD PVISIIIG SN Limit 2009-present 4.0 150IIIG Effective Limit 3.7 154IIIG SN Limit in IIIHBased on 434-2 only 20141220 to 20150728 3.7 73Based on 434 blends 20030812 to 20160119 3.7 126Based on 434 and 438 blends 20030812 to 20160119 4.0 150Probability of Pass (TMC434) 2003-2004 3.8 151

WPD

IIIG WPD Original Target Setting (2003-2004)

IIIG WPD (20030812 to 20160119)

WPD Effective SN Limit

• Data used in analysis includes all chartable data from Aug. 2003 to Jan. 2016. • By regressing WPD Severity Adjusted results against LTMS targets, determine the

corresponding result for a WPD of 4.0, the IIIG SN Limit. • Effective Limit – An oil that gives 4.0 in 2003 will give 3.7 on average over the life of the test.

IIIG WPD Effective Limit

IIIG WPD (20030812 to 20160119) with IIIH

Using 434-2 only, the means are the same for IIIG and IIIH so the IIIG Equivalent SN Limit in IIIH is 3.7

Using 434 blends, the means are the same for IIIG and IIIH so the IIIG Equivalent SN Limit in IIIH is 3.7

IIIG WPD Equivalent Limit in IIIH using 434-2 and 438-1

By regressing IIIH WPD Severity Adjusted results against IIIG current targets, determine the corresponding result for a WPD of 3.7, the IIIG Effective SN Limit.

Using 434 and 438 blends, interpolation from linear equation suggests IIIG Equivalent SN Limit in IIIH is 4.0

Although no 438-1 results in the IIIG, assume 438 and 438-1 blends are equivalent

PVIS

IIIG PVIS Original Target Setting (2003-2004)

IIIG PVIS (20030812 to 20160119)

IIIG LnPVIS (20030812 to 20160119)

LnPVIS Effective SN Limit

• Data used in analysis includes all chartable data from Aug. 2003 to Jan. 2016. • By regressing LnPVIS Severity Adjusted results against limit setting targets, determine the

corresponding result for a LnPVIS of 5.01, the IIIG SN Limit. • Effective Limit – An oil that gives 5.01 (150%) in 2003 will give 5.04 (154%) on average over

the life of the test.

IIIG LnPVIS Effective SN Limit

IIIG PVIS Effective SN Limit

IIIG PVIS (20030812 to 20160119) with IIIH

IIIG LnPVIS (20030812 to 20160119) with IIIH

Using 434-2 only, the mean for IIIG is higher than the IIIG Effective Limit by 0.44. Using the same distance from the IIIH

mean, IIIG LnPVIS Equivalent Limit in IIIH is 4.29.

Using 434-2 only, IIIG PVIS Equivalent Limit in IIIH is 73

Using 434-2 blends, the mean for IIIG is lower than the IIIG Effective Limit by 0.11. Using the same distance from the IIIH

mean, IIIG LnPVIS Equivalent Limit in IIIH is 4.84.

Using 434-2 blends, IIIG PVIS Equivalent Limit in IIIH is 126

IIIG LnPVIS Equivalent Limit in IIIH using 434-2 and 438-1

By regressing IIIH LnPVIS Severity Adjusted results against IIIG current targets, determine the corresponding result for a LnPVIS of 5.04, the IIIG Effective SN Limit.

Using 434 and 438 blends, extrapolation from linear equation suggests IIIG LnPVIS Equivalent Limit in IIIH is 5.01

Using 434 and 438 blends, IIIG LnPVIS Equivalent Limit in IIIH is 150

PROBABILITY OF PASS APPROACH

IIIG WPD Oil 434

P[434<4.0]=0.2 P[434>4.0]=0.8

Given the IIIG SN WPD limit of 4.0, the probability of oil 434 passing is 0.80.

IIIH WPD Oil 434-2

P[434-2>3.8]=0.8 P[434-2<3.8]=0.2

To allow 434-2 to pass 80% of the time, the IIIG Equivalent Limit in the IIIH should be 3.8.

IIIG LnPVIS Oil 434

Given the IIIG SN PVIS limit of 150, the probability of oil 434 passing is 0.80.

P[434>5.01]=0.2 P[434<5.01]=0.8

IIIH LnPVIS Oil 434-2

P[434-2>5.02]=0.2 P[434-2<5.02]=0.8

To allow 434-2 to pass 80% of the time, the IIIG Equivalent Limit in the IIIH should be 151.

Other analytical approaches could include:

1. Utilizing reference oil data from the time period corresponding to when SN limits were established

2. Incorporating continuous severity adjustments to correct reference results over time

3. Using an exponentially weighted average of the adjusted reference results

Seq. IIIG/Seq. IIIH Data Comparison

June 28, 2016

Data Two Chemistries/Two Viscosity

DI Package Chemistry A - CJ4 Chemistry B - SN

Grade 15W-40 5W-30

Test IIIG IIIH IIIG IIIH

Base Oil Multiple A A B C STM W X W-79hrs X Y

KV40 % Increase EOT PASS PASS 105 357 195 PASS PASS PASS 953 1472 1376

WPD PASS PASS 4.89 4.55 4.86 PASS PASS PASS 3.74 3.25 1.97

APV PASS PASS 9.35 8.99 9.27 PASS PASS PASS 8.15 N/A 8.19

MRV 33,428 N/A N/A PASS PASS PASS TVTM N/A TVTM

Phos 76 81 80 PASS PASS PASS 85.35 N/A 82

Oil Consumption PASS PASS 2.16 2.24 2.24 PASS PASS PASS 3.37 N/A 2.91

Comments• Please note that the IIIH with Chemistry B and Base oil W only

made it to 79 hours before it had to be shut down.

• In spite of 2 of the IIIH runs on Chemistry A failing, I think overall the Relationship between IIIG and IIIH there is fairly close.

• The work with Chemistry B, however shows a marked deviation from the first set of data and from the precision matrix work.

If this is the only chemistry with an issue it is probably something we will just have to live with.

If, however; it is not an anomaly I am concerned with using IIIH as a substitute for the IIIG.

Table G-5—Requirements for API Service Category SN

And API SN with Resource Conserving

API SN API SN API SN with Resource

Conserving

SAE 0W-16, SAE 5W-16, SAE 0W-20, SAE 5W-20 SAE 0W-30, SAE 5W-30,

SAE 10W-30

Other Viscosity Grades

All Viscosity Grades

Engine Test Requirementsa

ASTM D7320 (Sequence IIIG) Kinematic viscosity increase @ 40°C, % Average weighted piston deposits, merits Hot stuck rings Average cam plus lifter wear, μm

150 (max) 4.0 (min) None 60 (max)

150 (max) 4.0 (min) None 60 (max)

150 (max) 4.0 (min) None 60 (max)

Or

ASTM Dxxxx (Sequence IIIH) Kinematic viscosity increase @ 40°C, % Average weighted piston deposits, merits Hot stuck rings

150 (max) 4.0 (min) None

150 (max) 4.0 (min) None

150 (max) 4.0 (min) None

ASTM D6891 (Sequence IVA) Average cam wear (7 position avg), μm

90 (max)

90 (max)

90 (max)

ASTM D6593 (Sequence VG)c Average engine sludge, merits Average rocker cover sludge, merits Average engine varnish, merits Average piston skirt varnish, merits Oil screen sludge, % area Oil screen debris, % area Hot-stuck compression rings Cold stuck rings Oil ring clogging, % area

8.0 (min) 8.3 (min) 8.9 (min) 7.5 (min) 15 (max) Rate & report None Rate & report Rate & report

8.0 (min) 8.3 (min) 8.9 (min) 7.5 (min) 15 (max) Rate & Report None Rate & report Rate &report

8.0 (min) 8.3 (min) 8.9 (min) 7.5 (min) 15 (max) Rate & Report None Rate & Report Rate & Report

ASTM D7589 (Sequence VID)d SAE XW-16 viscosity grade

FEI SUM FEI 2

SAE XW-20 viscosity grade FEI SUM FEI 2

SAE XW-30 viscosity grade

FEI SUM FEI 2

SAE 10W-30 and all other viscosity grades not listed above

FEI SUM FEI 2

NR

NR

2.8% min 1.3% min after 100 hours aging 2.6% min 1.2% min after 100 hours aging 1.9% min 0.9% min after 100 hours aging

1.5% min 0.6% min after 100 hours aging

ASTM D6709 (Sequence VIII) Bearing weight loss, mg

26 (max)

26 (max)

26 (max)

Bench Test and Measured Parametera

Aged oil low-temperature viscosity

ASTM D4684, (Sequence IIIGA), aged oil low-temperature viscosity

Pass

Passd

Pass

Or

ASTM D7528, (ROBO Test), aged oil low-temperature viscosity

Pass Passd Pass

ASTM D7320, (Sequence IIIGB) phosphorus retention, % min

NR NR 79

Or

ASTM D-xxxx, (Sequence IIIHB) phosphorus retention, % min

NR NR 81

ASTM D6557 (Ball Rust Test), avg. gray value, minb 100 100 100

ASTM D5800, evaporation loss, 1 hour at 250°C, % maxe

15 15 15

ASTM D6417, simulated distillation at 371°C, % max 10 10 10

ASTM D6795, EOFT, % flow reduction, max 50 50 50

ASTM D6794, EOWTT, % flow reduction, max

with 0.6% H2O 50 50 50

with 1.0% H2O 50 50 50

with 2.0% H2O 50 50 50

with 3.0% H2O 50 50 50

ASTM D4951, phosphorus % mass, maxf 0.08g NR 0.08g

ASTM D4951, phosphorus % mass, minf 0.06g 0.06g 0.06g

ASTM D4951, or D2622, sulfur % mass, maxf SAE 0W-16, 5W-16, 0W-20, 0W-30, 5W-20, and 5W-30

0.5g NR 0.5g

SAE 10W-30 0.6g NR 0.6g

All other viscosity grades NR NR 0.6g

ASTM D892 (Option A), foaming tendency

Sequence I, mL, max, tendency/stability 10/0h 10/0i 10/0h

Sequence II, mL, max, tendency/stability 50/0h 50/0i 50/0h

Sequence III, mL, max, tendency/stability 10/0h 10/0i 10/0h

ASTM D6082 (Option A), high-temperature foaming mL, max, tendency/stabilityh

100/0

100/0

100/0

ASTM D6922, homogeneity and miscibility j j j

ASTM D6709, (Sequence VIII) shear stability k k k

ASTM D7097, TEOST MHT, high-temperature deposits, deposit wt, mg, maxf

35

45

35

ASTM D5133, gelation index, maxb 12l NR 12l

ASTM D6335, TEOST 33C, high-temperature deposits, total deposit weight, mg, max

SAE 0W-20 All other viscosity grades

NR NR

NR NR

NR 30

ASTM D7563, emulsion retention NR NR no water

separation

ASTM D7216 Annex A2, elastomer compatibility Table G-6 Table G-6 Table G-6

Note: All oils must meet the requirements of the most recent edition of SAE J300; NR = Not required. aTests are per ASTM requirements. bIf CI-4, CJ-4, CK-4 and/or FA-4 categories precede the “S” category and there is no API Certification Mark, the Sequence VG (ASTM D6593), Ball Rust (ASTM D6557), and Gelation Index (ASTM D5133) tests are not required. cViscosity grades are limited to 0W, 5W and 10W multigrade oils. dNot required for monograde and 15W, 20W, and 25W multigrade oils. eCalculated conversions specified in ASTM D5800 are allowed. fFor all viscosity grades: If CH-4, CI-4 and/or CJ-4 categories precede the "S" category and there is no API Certification Mark, the “S” category limits for phosphorus, sulfur, and the TEOST MHT do not apply. However, the CJ-4 limits for phosphorus and sulfur do apply for CJ-4 oils. This footnote cannot be applied if CK-4 or FA-4 is also claimed. Note that these “C” category oils have been formulated primarily for diesel engines and may not provide all of the performance requirements consistent with vehicle manufacturers' recommendations for gasoline-fueled engines. gThis is a non-critical specification as described in ASTM D3244. hAfter 1-minute settling period. iAfter 10-minute settling period. jShall remain homogenous and, when mixed with ASTM reference oils, shall remain miscible. kTen-hour stripped kinematic viscosity must remain in original SAE viscosity grade except XW-20 which must remain ≥5.6 mm²/s lTo be evaluated from –5˚C to temperature at which 40,000 cP is attained or –40˚C, or 2 Celsius degrees below the appropriate MRV TP-1 temperature (defined by SAE J300), whichever occurs first. mResource Conserving does not apply to 0W-16 and 5W-16