Passenger Car Engine Test Category For API SM
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API Engine Oil Classifications 2004
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Passenger Car Engine Test Category For API SM
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Requirements
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Test Method
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Properties
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Unit
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Limits
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SM/EC
GF-4
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1. LABORATORY TESTS
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1.1 Viscosity Grades
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All those that apply, typically SAE 5W-20, 5W-30 and 10W-30. Per SAE J300 specification
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Manufacturer sets targets within SAE J300 parameter
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1.2 Foam Test
(Option A)
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ASTM D892
ASTM D6082
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Sequence I
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ml initial
Foam/ml
after settling
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10/0 max
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Sequence II
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50/0 max
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Sequence III
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10/0 max
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Sequence IV
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100/0 max
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1.3 Phosphorus
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ASTM D4951
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%
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0.06 min
0.08 max
(1)
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1.4 EOFT
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ASTM D6795
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% reduction
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50 max
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1.5 EOWTT
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ASTM D6794
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with 0.6% Water
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% reduction
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50 max
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with 1.0% Water
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% reduction
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50 max
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with 2.0% Water
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% reduction
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50 max
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with 3.0% Water
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% reduction
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50 max
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1.6 TEOST (MHT4)
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Total Deposits
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mg
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35 max
(2)
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1.7 Homogeneity and Miscibility
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ASTM D6922
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pass
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1.8 Scanning Brookfield
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ASTM D5133
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Gelation Index
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12 max
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1.9 Volatility
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ASTM D5800
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Volatility (Noack)
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% off @ 250°C
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15 max
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ASTM D6417
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Volatility (GCD)
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% off @ 371°C
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10 max
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1.10 BRT
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ASTM D6557
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Rust rating
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Avg Gray Value
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100 min
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1.11 Sulfur
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ASTM D4951 or
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Sulfur content of 0W and 5W multigrades
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%
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0.5 max
(3)
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ASTM D2622
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Sulfur content of 10W multigrades
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%
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0.7 max
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2. ENGINE TESTS FOR API SM
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2.1 Sequence IIIG
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Viscosity increase at 100 hours
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%
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150 max
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Average weighted piston deposits
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merits
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3.5 min
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Hot stuck rings
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#
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none
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Average cam plus lifter wear
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microns
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60 max
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2.2 Sequence IIIGA
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Aged oil low temperature viscosity
using ASTM D4684
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Meet requirements of the
original grade or the next
higher grade
(4)
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2.3 Sequence IVA
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ASTM D6891
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Cam wear average
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microns
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90 max
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2.4 Sequence VG
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ASTM D6593
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Average engine sludge
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merits
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7.8 min
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Rocker arm cover sludge
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merits
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8.0 min
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Average piston skirt varnish
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merits
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7.5 min
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Average engine varnish
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merits
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8.9 min
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Oil screen clogging
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%
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20 max
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Hot stuck rings
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#
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none
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Cold stuck rings
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#
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rate & report
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Oil ring clogging
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%
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rate & report
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Follower pin wear, cyl #8, avg
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microns
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rate & report
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Ring gap increase, cyl #1 & #8, avg
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microns
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rate & report
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Oil screen debris
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% area
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rate & report
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2.5 Sequence VIII
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ASTM D6709
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Bearing weight loss
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mg
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26 max
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10 hr. stripped viscosity
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cSt
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Stay in grade
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2.6 Sequence VIB
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ASTM D6837
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SAE 0W-20 and 5W-20 viscosity grades
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% FEI1/%FEI2
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2.3 / 2.0 min
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SAE 0W-30 and 5W-30 viscosity grades
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% FEI1/%FEI2
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1.8 / 1.5 min
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SAE 10W-30 and all other viscosity grades
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% FEI1/%FEI2
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1.1 / 0.8 min
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Limits for SM Non-ILSAC GF-4 viscosity grades:
(1)
0.06 min, no max
(2)
45 max
(3)
Not Req.
(4)
Not Req.
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Все стандарты
