The American Petroleum Institute (API) is the only national trade association that represents all aspects of America’s oil and natural gas industry. Our more than 600 corporate members, from the largest major oil company to the smallest of independents, come from all segments of the industry. Motor Oil Guide. This four-page laminated guide is designed to help consumers understand the API Engine Oil Quality Marks—the API Certification Mark "Starburst" and Service Symbol "Donut"—and the API Service Categories. API CK-4 oils exceed the performance criteria of API CJ-4, CI-4 with CI-4 PLUS, CI-4, and CH-4 and can effectively lubricate engines calling for those API Service Categories. When using CK-4 oil with higher than 15 ppm sulfur fuel, consult the engine manufacturer for service interval recommendations. API Service Categories. Whereas the labeling on the bottle of engine oil may suggest the product is a 5W-30, note, if there is no "W" between the 5 and the 30 it may not be a 5W-30. As an example, a 5-30 is not the same as an SAE 5W-30. The next "code" to look for is the API Service Classification. The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water. if its API gravity is greater than 10, it is lighter and floats on water; if less than 10, it is heavier and sinks. API Gravity to Specific Gravity and Density Chart: 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 higher the letter, the more recent the technology of the oil. Here's a history chart of the API “S” series spark-ignition (gasoline) specifications, as well as the The Vertex brand is now officially API licensed for it's petrol and diesel range of oils. Role of Lubricants. There are 6 Basic Functions of a Lubricant/Oil. Lubrication
LUBRICANT CLASSIFICATION. MOTOR OIL. There are two main classification criteria for motor oils: • Based on Viscosity (SAE). • Based on Performance (API,
It also represents the oil and gas industry to the public, Congress, state governments, and media. American Petroleum Institute Standards for PDC and Rock Bit 20 Feb 2013 They backed up their assertion with a chart of production quantity and API quality indicating 70 percent of production is condensate. Current 12 Jul 2018 Represents expected products from crude & vacuum distillation. Completeness of data depends upon source. Quality measures. ▫ Specific / API Traders also consult the American Petroleum Institute (API) Weekly Statistical Bulletin Report, released on Tuesdays at 4:30 p.m. Eastern Time. This report United States's Crude Oil: Production data remains active status in CEIC and is View United States's Crude Oil: Production from 1960 to 2018 in the chart:. Download scientific diagram | Corrosion rate chart of API-X70 steel in tap water, crude oil extract, and oil/water emulsion (a) rough surface (b) polished surface
API gravity = (141.5/Specific Gravity) – 131.5 Though API values do not have units, they are often referred to as degrees. So the API gravity of West Texas Intermediate is said to be 39.6 degrees. API gravity moves inversely to density, which means the denser an oil is, the lower its API gravity will be. Follow manufacturer’s oil change recommendations. Use only the recommended API category: “S” for gasoline engines; “C” for diesel engines. Select the proper SAE oil viscosity grade. If you find it necessary to mix brands of oil, use the same viscosity grade and API service category to maintain performance. API SN Engine Oil Category. In 2010 the American Petroleum Institute introduced a new engine oil category under the name API SN and a new supplemental category called Resource Conserving.. The API SN category is an improvement over the API SM category in the following areas: API is devised jointly by the American Petroleum Institute and the NIST - National Institute of Standards and Technology. The measuring scale is calibrated in terms of degrees API. API Gravity can be calculated as: °API = (141.5 / SG) - 131.5 (1) where °API = Degrees API Gravity . SG = Specific Gravity (at 60 o F) Specific gravity can be calculated from API gravity: Light crude oil: API gravity higher than 31.1 °API (less than 870 kg/m³) Medium crude oil: API gravity from 31.1 °API to 22.3 °API (870 to 920 kg/m³) Heavy crude oil: API gravity from 22.3 °API to 10 °API (920 to 1000 kg/m³) Extra-heavy crude oil: API gravity below 10 °API (higher than 1000 kg/m³) The API degrees indicate whether a crude oil floats on water or sinks. Light crude oils flow easily and contain more volatile components, while extra-heavy crude oils are highly viscous