In the drive to improve fuel economy, the primary focus has been on reducing friction. But testing at Lubrizol suggests that whats happening at the surface of engine parts is critical to improving fuel economy. Their findings show that protecting engine parts by using surface-active additives not only helps reduce friction, but also improves durability. This is leading to what Tom Curtis, vice president, engine additives, called a revolution in the way we formulate fuel economy lubricants for todays cars and trucks.
Fuel economy has been a significant driver of engine lubricant development for decades, said Lubrizols Mike Sutton at the 19th International Tribology Colloquium at the Technische Academie Esslingen, Germany, in January 2014. Sutton, technical fellow, engine oils, added that the cost of vehicle ownership, energy security and the need to limit greenhouse gas emissions are all factors behind legislation promoting fuel economy improvements.