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API CJ-4 oils exceed the performance criteria of API CI-4 with CI-4 PLUS, CI-4, CH-4, CG-4, and CF-4 and can effectively lubricate engines calling for those API Service Categories. When using CJ-4 oil with higher than 15 ppm sulfur fuel, consult the engine manufacturer for service interval.
The current and previous API Service Categories are summarized in convenient charts. Vehicle owners should refer to their owner's manuals before consulting these charts. Oils may have more than one performance level.
This six-page laminated guide is designed to help consumers understand the API Engine Oil Quality Marks—the API Certification Mark "Starburst," the API Certification Mark "Shield" and the API Service Symbol "Donut"—and the API Service Categories.
Service Classifications & Grades. Motor Oil Service Classifications and Viscosity Grades. The “API” and the “SAE” Motor oil quality has changed dramatically in the past 50 years, and new demands on lubricants in modern engine designs call for oils that meet stringent requirements.
Passenger Vehicle Engine Oil Requirements For API SP-RC/ILSAC GF-6A/6B Categories Requirements for API SP are the same as RC version, except as per footnotes. For Service Fill Oils
API Oil Rating on Engine Oils explained. Here you can find the summary tables issued by the American Petroleum Institute classifying engine oils.
5 Ιουν 2024 · API Service Category CK-4 (see Annex I, Table I-4) describes oils for use in high-speed four-stroke cycle diesel engines designed to meet 2017 model year on-highway and Tier 4 non-road exhaust emission standards as well as for previous model year diesel engines.
