Video interview: Evonik demonstrates 1.5% FE improvement with patented COMB polymers

  • 16-Apr-2013 06:35 EDT

A Lotus Elise-E show car loaded with a range of technologies from Evonik Industries garnered quite a bit attention on the SAE 2013 World Congress show floor. Underneath the lightweight body panels and glazing, among other technologies, are the company's new patented COMB polymers that allow for lower treatment rates in oil, higher viscosity index lift, and provide compatibility, durability, and full fluid service life.

ATF (automatic transmission fluid) lubricants formulated using COMB polymer technology have demonstrated greater fuel efficiency than existing "state-of-the-art" factory-fill blends at OEMs, Evonik claims. For example, testing in European independent labs has shown up to 1.5% absolute fuel-economy (FE) improvement in an Asian crossover vehicle run to NEDC cycles.

Testing on SUVs in the U.S. has shown from 0.3 to 1.0% absolute FE improvement in combined cycle results compared to current fluid, according to Evonik.

Doug Placek, President of Evonik Oil Additives USA, spoke with SAE Magazines at the Detroit engineering event about COMB polymer technology and how it can fit into OEMs' strategies to improve fuel efficiency. Click here to see video of the conversation.

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