А с 19 ноября планируется НОВЫЙ класс ILSAC GF-5 !
ILSAC GF-5 STANDARD FOR
PASSENGER CAR ENGINE OILS
DRAFT
November 19, 2009
Jointly developed and approved by
Japan Automobile Manufacturers Association, Chrysler LLC,
Ford Motor Company and General Motors Corporation.
ILSAC GF-5 REQUIREMENTS
1. FRESH OIL VISCOSITY REQUIREMENTS
1.a SAE J300
Oils shall meet all of the requirements of SAE J300. Viscosity grades are limited to SAE 0W, 5W, and 10W multigrade oils.
1.b Gelation Index: ASTM D 5133 12 maximum
To be evaluated from –5°C to the 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.
2. ENGINE TEST REQUIREMENTS
2.a Wear and Oil Thickening: ASTM Sequence IIIG Test, ASTM D 7320
Kinematic Viscosity Increase @ 40°C, % 150 maximum
Average Weighted Piston Deposits, merits 4.0
Hot Stuck Rings None
Average Cam plus Lifter Wear, μm 60 maximum
2.b
Wear, Sludge, and Varnish Test: Sequence VG, ASTM D
6593
Average Engine Sludge, merits 8.0 minimum
Average Rocker Cover Sludge, merits 8.3 minimum
Average Engine Varnish, merits 8.9 minimum
Average Piston Skirt Varnish, merits 7.5 minimum
Oil Screen Sludge, % area 15 maximum
Oil Screen Debris, % area Rate and report
Hot Stuck Compression Rings None
Cold Stuck Rings Rate and report
Oil Ring Clogging, % area Rate and report
2.c Valvetrain Wear: Sequence IVA, ASTM D 6891
Average Cam Wear (7 position average), μm 90 maximum
2.d Bearing Corrosion: Sequence VIII, ASTM D 6709
Bearing Weight Loss, mg 26 maximum
....................
_http://www.api.org/certifications/engineoil/upload/ILSAC_GF_5_draft_Nov_19_09.pdf