User:Radius Lubricants Radix/sandbox

KNOW-HOW ABOUT ENGINE OIL USED FOR BIKES IN INDIA: The American Petroleum Institute, API, is a U.S.A trade association for the oil and natural gas industry. ... For example, if we have an oil with specification SN, it can also be used for vehicles which request API SM, SL and SJ; it is backward compatible. In 1998 the Japanese Automotive Standards Organization (or JASO for short) developed a grading system for motorcycle oils. The grading system measured (amongst other things) an oils ability to resist clutch friction (or slippage), protection offered against engine wear and pitting in the gear box. • API – American Petroleum Institute • JASO – The Japanese Automotive Standards Organization • “S” grade stands for Petrol vehicles. (Sprak Ignition) • MA – Grade for Wet Clutch type vehicles (HIGH FRICTION VEHICLES. Non Clutch Slipping Oil) • MA2- next version of MA(HIGH FRICTION VEHICLES Non Clutch Slipping Oil)                        Petrol Engine Grades :- SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM. (In the increasing order of their grade). If the manufacturer recommended oil grade is API SL(JASO MA) and if, in the market, the oil company introduces a newer grade of the same oil like API SM (JASO MA2), then it should be used for better performance of the engine.

GRADES OF ENGINE OIL:

SA Oil without additive. SB Some antioxidant and anti scuff properties. SC Meets 1964-1967 requirements of Automotive manufacturers. SD Meets 1968-1971 requirements of Automotive manufacturers. SE Meets 1972-1979 requirements of Automotive manufacturers. SF Meets 1980-1988 requirements of Automotive manufacturers. SG Meets 1989-1993 requirements of Automotive manufacturers. SH Meets 1994-1997 requirements of Automotive manufacturers. SJ Meets 1998-2000 requirements of Automotive manufacturers. SL Meets 2001-2004 requirements of Automotive manufacturers. SM Meets 2004-onwards requirements of Automotive manufacturers. The API “SM” is backwards compatible and suitable for use in place of earlier classifications. JASO also have 4 classifications for motorcycle oil, MA, MA1, MA2 and MB. Their differences are determined by a clutch system friction test. JASO MA Japanese four stroke motorcycles, nonfriction modified engine oil suitable for use with wet clutches. Now further split into MA1 and MA2 based on a clutch system friction test. JASO MB Japanese four stroke motorcycles lowest friction oil.

A wet clutch is the most widely used in India and the term 'wet' refers to the lubricant, that is usually engine oil. The clutch system operates in closed enclosure in the same oil as the engine does and is generally preferred over a dry clutch because of its efficiency, longer life and moreover, it keeps the surfaces clean. However, a wet clutch, since it's bathed in oil, can have a lower co-efficient of friction. The fluid absorbs some of the energy from friction and a negligible amount of power may be lost.

The function of engine oil: The base oil allows the motor oil to perform its vital function - lubricating the engine's moving parts to protect them against wear and tear caused by friction. The additives provide aadditional engine protection by helping to prevent the oil from deteriorating under the engine's extreme temperature conditions.

JASO MA2, API SM motorcycle oils use a state of the art additive package that has been designed and tested to provide excellent wear protection, prevention from rust and oxidation, provide optimal clutch performance, and maintain proper frictional characteristics as required by the current JASO standards.