The technology used for lubrication has evolved slowly from the ancient times till the 1950s. Because of the improved properties of the lubricants, the solvent refining technology has emerged and it has successfully replaced the naturally occurring petroleum distillates.
It was between the 1970s and 1980s, hydrocarbon technologies like hydrocracking, enable the petroleum manufacturers to manufacture Group II base oils. Then it was in 1993 when API (The American Petroleum Institute) came forward categorized different groups of oils over their previous stocks.
Evolution of Group III Base Oil
It is evident and recorded also that polyalphaolefins (PAOs) have an excellent record of performances like pour point, viscosity index (VI), oxidation stability as well as volatility. Interestingly, all these features are very difficult to be achieved with the conventional mineral oils.
Performance wise, modern-day group III oil can easily outrun PAO in a variety of ways that are important to lubricants such as lubricity, solubility, antiwear performance and lot more. Below in the post, we will discuss some of the crucial areas for the finishes performance where Group III base oil must compete with the Group IV and they are:
- NOACK Volatility
- Pour Point
- Oxidation Stability
Noack Volatility of petroleum oil, as per the measurements by ASTM D5800 along with other methods have been found a relation with the consumption of oil in the engines for passenger cars. Strict requirements for having volatility are undoubtedly some vital aspects of different upcoming engine oil specifications.
This is one such property where you will get to see one gap for sure but at the same time, it is also true that the pour point depressants have closed the performance gap significantly. It becomes very important for the base oil suppliers to understand the pour point of the lubricated formulation. It is important to note that the base oils manufactured using modern isomerization compounds retort well to the minimal doses of the pour point sedative additives.
Thermal as well as oxidation stability are considered as the most vital benefits that synthesis brings to the table. Base oils have better stability implies better stability for additive as well as longer life. High stability is also considered as the key to make premium quality lubricants of the future with longer drain intervals. Thus in this way Group III oils challenge the performance levels of PAO at regular interval of time.
From the above discussions, it can be easily concluded that along with the advancement in the technology for manufacturing base oils, consumers will be allowed to enjoy greater protection for the vehicles and businesses will be allowed to enhance the longevity of their machinery.