Professional Quality Light Weight Fuel Hydrometer. This hydrometer is specifically used for testing fuels that are a lighter weight than normal fuels. This is used to the identify the quality of your fuel and/or detect contamination. Many folks spend thousands of dollars on modifications and upgrades to their vehicles, but never check something as simple as the fuel that powers it! Check your diesel fuel in your trucks, tractors and even your home heating oil! Gasoline, Alcohol, Methanol, Methyl Alcohol, Bio Fuels, Kerosene, Aviation, Ethyl Alcohol and Ethanol.

All Fuels have a specific gravity. Do some research regarding your fuel’s optimal specific gravity (best fuel mileage/power) and use this instrument to measure and monitor the quality!

Specific Gravity: .650 – .850 Specific Gravity based at 60°F. (.05 specific gravity increments)