1975-02-01

METHANOL AS A MOTOR FUEL OR A GASOLINE BLENDING COMPONENT 750123

Laboratory and road tests showed methanol to be an effective octane booster. Adding 10% methanol to unleaded gasoline raised the Road octane 2-3 numbers. However, significant deterioration in driveability tests occurred because of methanol's “leaning” effect. The water sensitivity of methanol/gasoline requires a separate fuel distribution system. Fuel storage in a vehicle must be protected from water absorption. Corrosion and degradation problems occur in the vehicle fuel system where methanol/gasoline mixtures contact lead, magnesium, aluminum, and some plastics.
Methanol burned more efficiently under lean conditions than gasoline. However, the cold start problems require a separate starting fuel. Methanol is not a useful fuel additive for existing unmodified cars. Methanol could be used effectively in special vehicles designed to handle the corrosion, water absorption, and vaporization characteristics. The cost of manufacture and distribution in a separate system that overcomes the water sensitivity problem will determine the extent of methanol's use as a vehicular fuel.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Studies on Methanol or Ethanol and Gasoline Thermal Blending Fuel System

880041

View Details

TECHNICAL PAPER

Effects of Methanol/Gasoline Blends on Hot Weather Driveability

870368

View Details

TECHNICAL PAPER

Enhancing Low-Temperature Phase Stability of a 50/50 Methanol/Hydrocarbon Blend

881680

View Details

X