J-38641-D 10529 014-00988 Diesel Fuel Quality Hydrometer Alt.

J-38641-D 10529 J-38641-B 014-00988 Diesel Fuel Quality Hydrometer Alternative

This is a high-quality Made-In-The-USA hydrometer that provides a true gravity reading and includes instructions.

Hydrometer scale is from 30 to 110. Correction scale is from +2.5 to -5.0.

Provides a quick determination of diesel fuel API in the vehicle. Diesel fuel is drawn into the hydrometer tube to float the internal glass bulb float. The top scale of the float has a direct reading API scale. The bottom of the float has an integral thermometer and temperature correction scale. The reading on the thermometer correlates to the temperature scale and gives a number to add or subtract to the float top scale reading to compensate for the fuel temperature and provide an accurate API reading. Float has a direct reading API scale. Bottom float reading is based on temperature. Temperature scale will give a number to add or subtract to the top scale reading that will compensate for temperature therefore, giving the correct API reading.

Note: The floats are extremely delicate and are often broken during handling. They are not covered under warranty. We strongly suggest purchasing a spare float at the time of purchase because some customers break them while just unpacking their shipment.