11-05-2013, 10:55 AM
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#3 (permalink)
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Batman Junior
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Highest gear, lowest reasonable road speed.
People often mistake the "sweet spot" on the BSFC (Brake Specific Fuel Consumption) map as meaning that's where they should always try to operate the engine.
Not so. As RedDevil explains, that's where you want to operate the engine when moderate/heavy load is required (ie. when accelerating or climbing a steep grade).
But not when cruising at light load. Go for the highest gear/lowest RPM.
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