What is API in oil?
The American Petroleum Institute, API, is a U.S.A trade association for the oil and natural gas industry. It reunites different actors in the production, refinement, distribution and many other activities around ptroleum.
What is the API of heavy oil?
API gravity can vary greatly from 10 to 50; the higher the API gravity number, the lighter and more liquid the oil. Most crude oil falls into the range of 20 to 45. Heavy crude oil has an API gravity of less than 20.
What is the API gravity of light oil?
The New York Mercantile Exchange (NYMEX) defines light crude oil for domestic U.S. oil as having an API gravity between 37° API (840 kg/m3) and 42° API (816 kg/m3), while it defines light crude oil for non-U.S. oil as being between 32° API (865 kg/m3) and 42° API (816 kg/m3).
What is the specific gravity of 38 degree API oil?
API Gravity to Specific Gravity and Density Chart:
| Degree API. | Specific Gravity. | Density (kg/m3). |
|---|---|---|
| 35 | 0,850 | 849,850 |
| 36 | 0,845 | 844,776 |
| 37 | 0,840 | 839,763 |
| 38 | 0,835 | 834,808 |
Is higher API oil better?
A crude oil will typically have an API between 15 and 45 degrees. Higher API indicates a lighter (lower density) crude. Lower API indicates a heavier (more dense) crude. Generally, lighter (high API) crudes are more valuable because they yield more high-value light products when run through a refinery.
What is API SL?
API Service Category SL was first introduced in 2001 for use in gasoline engines and is not suitable for use in engines introduced after 2004. API continues to license engine oils against API SL and it is considered to be a current specification.
How is API gravity calculated?
The formula for API gravity is API = (141.5/SG) -131.5 where SG is the specific gravity of the petroleum liquid being measured. For example, for an API gravity of 50, add 131.5 to obtain 181.5. Divide 141.5 by (131.5 + API gravity) to obtain the specific gravity of the oil.
How is oil API calculated?
What is API formula?
The formula for API gravity is API = (141.5/SG) -131.5 where SG is the specific gravity of the petroleum liquid being measured. For example, for an API gravity of 50, add 131.5 to obtain 181.5.
Is API SN better than SM?
The API SN category is an improvement over the API SM category in the following areas: High temperature deposit protection for pistons. Better sludge control.
What is the highest API rating for oil?
SM
The API’s current highest rating for motor oil is SM. This oil is intended for all gasoline engines currently in use and has been the standard since 2004. For diesel engines, the current top oil rating is CI-4.