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For the past four years, the Co-Optimization of Fuels & Engines (Co-Optima) National Laboratory consortium has focused research efforts primarily on turbocharged (boosted) spark-ignition (SI) engines for light-duty vehicles. The report highlights researchers’ answers to three vital questions: What fuels do engines want?
While fueleconomy ratings of today’s cars significantly outstrip those of just a decade ago, cost-effective efficiency improvements remain limited by existing engine designs and fuel formulas. It represents the most detailed correlation to date of fuel properties and engine efficiency.
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