Mercury-Mercruiser 91-879172T28 Alcohol Tester Tool
This is a genuine Mercury Marine factory OEM part, not aftermarket
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Test Tube used to find the ethanol/alcohol percentage in gasoline.
Directions:
Step 1: Add water to the water line.
Step 2: Add gasoline to the gasoline line.
Step 3: Replace cap and shake vigorously
Step 4: Stand vial vertically with cap upright for 10 minutes.
Step 5: Locate the gasoline/water separation line and read scale. The separation line will indicate the percentage of alcohol, if present.
Test Tube used to find the ethanol/alcohol percentage in gasoline.
Directions:
Step 1: Add water to the water line.
Step 2: Add gasoline to the gasoline line.
Step 3: Replace cap and shake vigorously
Step 4: Stand vial vertically with cap upright for 10 minutes.
Step 5: Locate the gasoline/water separation line and read scale. The separation line will indicate the percentage of alcohol, if present.