Fuel Sobriety Test - Testing Fuel For Excess Alcohol (ASN 0287-05)

FUEL SOBRIETY TEST - TESTING FUEL FOR EXCESS ALCOHOL

TECHNICAL SERVICE BULLETIN

FUEL SOBRIETY TEST

Model(s): All Acura Models through 1987

Group: Fuel/Emission

Bulletin No.: ASN 0287-05

Date: February, 1987

SERVICE INFORMATION

You suspect a certain station is selling gasoline that has alcohol added to it. Alcohol doesn't make gasoline look any different, so how can you tell?

There's a simple yet effective test that can be done in your shop (as long as it's done in a well-ventilated area that's clear of sparks, flames, lit cigarettes, etc.)

The test is based on the following facts:

• Alcohol blends with gasoline.
• Alcohol blends better with water than with gasoline.
• Water and gasoline don't mix.
• When alcohol, water and gasoline are mixed together, the alcohol will combine with the water, and the alcohol and water solution will separate from the gasoline.

For the test, you'll need an 8 oz. graduated container. Fill the container to the 1.5 oz mark with water. (Be sure to mark the exact water level.) Add test fuel up to the 8 oz. mark, cap the container and then shake it vigorously.

Place the container upright on the bench and wait a few minutes. If there is no alcohol in the gasoline, the gasoline/water separation line will be at the exact level you marked. If there is alcohol in the gasoline, it will combine with the water and the gasoline/water separation line will be ABOVE the level you marked.