Testing Procedure

CAUTION: DO NOT ALLOW SMOKING OR USE OF OPEN FLAMES IN AREA WHERE WORK ON FUEL SYSTEM IS TAKING PLACE. ANYTIME THE FUEL SYSTEM IS BEING WORKED ON, DISCONNECT NEGATIVE BATTERY CABLE, EXCEPT FOR THOSE TESTS WHERE BATTERY VOLTAGE IS REQUIRED.

IMPORTANT: This test can be performed using the Saturn Service Fuel Test Kit SA9213NE or equivalent.

1. Using a 100 ml cylinder with 1 ml graduation marks, fill with fuel to the 90 ml mark.
2. Add 10 ml of water to bring the total fluid volume to 100 ml and install a stopper.
3. Carefully loosen stopper to release pressure.
4. Close the stopper and shake vigorously for 10 to 15 seconds.
5. Carefully loosen stopper to release pressure.
6. Put the graduated cylinder on a level surface for approximately five minutes to allow adequate liquid separation.

If alcohol is present in fuel, the volume of the lower layer, which would now contain alcohol and water will be greater than 10 ml. For example, if the volume of the lower layer is increased to 15 ml it would indicate at least five percent alcohol in fuel. The actual amount of alcohol may be somewhat greater because this procedure does not extract all of the alcohol from fuel.