03-27-2014, 12:41 AM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
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Not Ranked
A vehicle running closed loop engine management will use more fuel the higher the ethanol content goes.
O2 sensor activity and the target A/F ratio sends fuel trims positive to make up the difference.
Fuel consumption order worse to best E85, E10, 91, 95, 98 PULP, as tested for a local TV report.
Carbs require recalibration for anything over 10% ethanol.
Stoich ratios for fuels: petrol 14.7:1, ethanol 9.5:1, methanol 6.5:1 approx.
Obviously best power ratios are richer.
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Gary
Gold Certified Holden Technician
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