Green Car Congress

MAY 1, 2009

The researchers found that the combination of technologies allowed improvements in fuel economy over the engine drive cycle. Furthermore, a reasonable improvement in dilution tolerance could be achieved at higher engine loads, which could eliminate over-fueling requirements under such conditions. Cairns et al. SAE 2009-01-0138).

Alcohol Blend 186

Alcohol Blend Downsizing Engine Fuel 186

Green Car Congress

MARCH 27, 2020

Co-Optima estimations indicate that significant fuel economy improvements are possible with improvements to RON, S, and HOV. The report highlights researchers’ answers to three vital questions: What fuels do engines want? What Fuels Should We Make? Source: Co-Optima capstone report. What Will Work in the Real World?

Alcohol Blend 243

Alcohol Blend Fuel Engine Fuel Economy 243

Green Car Congress

AUGUST 30, 2009

In 1975, General Ernesto Geisel, then-president of Brazil, ordered the country’s gasoline supply mixed with 10% ethanol. The level was raised to 25% over the next five years, which was intended to maintain a constant Brazilian gasoline supply for an ever-increasing demand. These were arguably the first flex-fuel vehicles.

Transportation 317

Transportation Fuel Renewable Gasoline-Electric 317