CG - 4 : It is the Heavy Duty Engine Service category published in 1994. Provides higher piston deposit control and less carbon build-up compared to CF-4. Category that meets the requirements of high-speed, four-stroke, direct-injection, turbocharged, heavy-duty diesel engines used both on and off-road.
SL :Gasoline engine oil category issued on July 1, 2001, regulated for the requirements of engines manufactured in 2002. It can also be used on previously manufactured vehicles. Gasoline engine oil that provides better deposit control and low oil consumption at high temperatures.
10W40 API CG-4/SL STANDARD PRO
The formula and manufacturing technique of the engine oil, which is produced by going through various reactions of multiple raw materials, can be found in the prepared pdf file.
* Process additive detailed list.
* Process temperatures and additive amounts.
* Processing time, detailed details.