October 22, 2020

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Quarter Three 2016

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The new GM dexos2: It’s complicated

At the UNITI Mineral Oil Technology Congress held in Stuttgart, Germany in April, Thomas Hickl, an engineer for Opel, outlined the evolution of General Motors’ dexos engine oil specification. He noted that lubricants for GM’s new dexos2 specification, which covers diesel engines, will have to pass a low speed stochastic pre-ignition (LSPI) test.
This will be true even though diesel engines don’t experience unpredictable pre-ignition, the hallmark of LSPI, while gasoline engines do. Why, then, does dexos2 even include an LSPI test?

August 1, 2016
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Labelling is key for new breed of emulsifiers

Emulsifiers, along with corrosion inhibitors, are the most commonly used additives in metalworking fluids. They represent 23% of metalworking additives, about 140,000 tonnes per year out of a global additive consumption of 600,000 tonnes per year, according to Kline & Co. At F+L Week 2016 in Singapore, Claude-Emmanuel Hédoire, technical marketing manager for lubricants and metalworking fluids at Solvay, based in Paris, outlined the main challenge for emulsifiers today. Formulators must balance the needs of performance, regulation and economics. Hédoire addressed how Solvay has approached developing an emulsifier that satisfies all three needs.

August 1, 2016