Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels
Green Car Congress
AUGUST 25, 2015
A higher compression ratio can be used if an engine will operate primarily at light loads, such that degraded efficiency at high loads is more than offset by improved efficiency at light loads. Shelby, and William M. A higher compression ratio can also be used if an engine will operate on fuel with a higher octane rating.
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