Oil VISCOSITY AND FUNCTIONS

Viscosity / Viscosity OilOil viscosity oil deals with the ability to work in extreme temperatures , oil is oil that has excellent viscosity stable / resilient to low temperatures ( cold ) and high temperature ( heat ) , this capability will be very supportive to oil above 4 functions . The level of oil resistance to temperature is stated in the Society of Automotive Engineers ( SAE ) , for example, is written on the packaging SAE 5W - 40 is a sign 5W ( Winter ) that at low temperatures ( cold ) oil will still have a 5 and a viscosity at high temperatures ( hot ) oil viscosity will be at the level of 40 , as well as the code of the 15W - 50 oil at the lowest temperature will have a viscosity at 15 degrees and the highest temperature of the oil has a viscosity 50 . The smaller the distance , the better the oil viscosity of the oil quality eg SAE 5W - 30 will be better than code SAE 5W - 40 .
oil codeThe lower the outside air temperature ( cold areas ) then it takes more oil to dilute or 5W code , such as a cold country french usually wear oil with 5W code . Increasingly hot weather / air temperature outside the required oil with a higher viscosity , like Indonesia would be better to use SAE 15W - 30 code . The use of viscosity that is inconsistent with a country's temperature will cause the oil can not work , for example, Indonesia using SAE 5W - 40 code then the oil will be very dilute and is unable to perform the task lumbrikasi well , and vice versa if the country with extreme cold weather use code SAE 15W then it will be very thick oil when cold air so that the oil can not flow in the spaces between the components of the engine ) .SAE code suitable for some countries with different climates :SAE 5W - 30 : is used for cold climate countries such as FranceSAE 10W - 35 : is used for temperate countries such as AustraliaSAE 15W - 30 and SAE 15W - 50 : is used for countries with hot climates such as Indonesia .
API Standard Oil QualityOil SAE" American Petroleum Institute " or abbreviated API is a standard code to determine certain characteristics ( quality ) oil , API code consists of two alphabet ( letters ) which is located behind the code " API " for example " SG API " or " API CH " . In the first letter code indicating the use of oil in the gasoline engine or diesel engine , the petrol engine using the code " S " for example, API SL , while the diesel engine using code " C " for example, API CG .In the 2 -letter code to signify the character / quality of the latest Oil , for example, API SJ is a newer type of oil ( typically better ) than API SG . The more new oil to the two -letter code is getting away from the letter A to the letter Z , or , at the latest cars gasoline engines output in 2010 will use oil with API SN and quality can not be filled with oil with SG quality code because it will affect the components in the machine that has been designed using quality oil with code SN , whereas for the car 1990s usually wear API code API SG or SH and can not be filled with oil API SN coded as engine oil SG has been designed to wear with a certain degree of viscosity . as usually the new record car then it will ask for the code API is getting closer to Z.engine oil
Oil API code along with its use in a car engineGasoline engine cars* API SN : ( type the last to date ) using Nano technology guard to protect the narrowest part of the machine . Used for the engine in 2012 or earlier* API SM : Introduced in 2004 . This oil is designed to provide better oxidation resistance , keeping the temperature , the better protection against wear and deposit control better . be used for machinery after 2004.* API SL : Designed to keep the temperature and Energy Conserving . For 2004, or earlier generation machines* API SJ : Introduced for the 2001 generation of engines or older* API SH : Used for engines 1996 and earlier* API SG : Used for engines 1993 and earlier* API SF : Used for engines 1988 and earlierDiesel cars* API CJ - 4 : Used for 2006 and thereafter . Used for high speed engine , 4-stroke engines designed to meet 2007 emission standards . Oil with API CJ - 4 category has a better performance than the criteria of API CI - 4 type with CI - 4 PLUS , CI - 4 , CH - 4 , CG - 4 and CF - 4 .* API CI - 4 : Used for diesel engines in 2002 and thereafter . Used in high speed engines , four-stroke engines designed to meet 2004 emission standards . Oil can replace the CD , CE , CF - 4 , CG - 4 and CH - 4 .* API CH - 4 : Used for diesel engines in 1998 and thereafter . Engine oil for high speed , four-stroke engines designed to meet 1998 emission standards . Can be used on oil CD , CE , CF - 4 , and CG - 4 .* API CG - 4 : Introduced since 1995. For engine performance medium, high speed , four-stroke engines. Used for machine requesting the sulfur content / approximately 0.5 % sulfur . Suitable for 1994 emissions standards can be used in oil CD , CE , and CF - 4 .* API CF - 4 : Used for high speed engines , four-stroke engines , naturally aspirated and turbocharged engines . Usually used for oil replacement CD and CE .* API CF - 2 : Used for moderate performance engines , two- stroke engines. Can be used on CD - II oils .* API CF : Used For 1994 and thereafter , the oil for the engine off road , indirect injected and oil can replace the CD code .