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Singapore refinery for base stocks.

A history of Group II base oils

A quarter of a century ago, Group I base oils were the base stocks of choice for most lubricants. Today, thanks to new refining technology, Group II base oils make up 40% of the world’s base oil production capacity. Learn about the role ExxonMobil played in the development of Group II base oils in Lubes’n’Greases magazine’s 25th anniversary issue.

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Source: Article by Steve Haffner. Originally published in the 25th anniversary issue of Lubes’n’Greases magazine, 2020.

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