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Ford / AVL study concludes mid-level ethanol blend attractive as a long-term future fuel for use in optimized engines in US

Green Car Congress

The increase in knock-limited torque with increasing ethanol content can be limited by the available boost pressure of the turbocharger system and the peak pressure capability of the engine structure, especially at high ethanol content. Downsizing/downspeeding. Fuel efficiency. Reduced enrichment. Anderson, J., and Wallington, T., “An

Engine 253
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Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

Green Car Congress

Knock and fuel octane rating are becoming increasingly important due to many powertrain design trends including downsizing, downspeeding, cylinder deactivation, and hybridization. … To achieve continued improvement in engine efficiency and CO 2 emissions, it is critical to quantify the roles of fuel octane rating and alcohol content.

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