Diesel Fuel Tester with Built in Thermometer – Specific Gravity



Test your diesel fuel quality… you may be surprised! Many people do not realize that the density of your diesel is directly proportional to your fuel mileage, horsepower and overall engine performance.

Product Information:

  • Heavy Duty Industrial Grade
  • .750 to .900 Specific Gravity Range (quality diesel should be approximately .850)
  • Built in Temperature Compensation
  • High Quality Fuel Resistant Rubber Parts
  • All in one design for minimal mess
  • Quantity Discounts Available

Your satisfaction is GUARANTEED! All of our products are N.I.S.T. traceable and guaranteed accurate!

Free shipping to the lower 48 states only.

If you have any questions about our products, please give us a call. (717) 453-7171
We have trained technicians waiting to answer your questions!
Our hours of operation are Monday thru Thursday 7 AM-5 PM EST.


Check out the pdfs below for more information on temperature correction, assembly, use and care:

fuelCorrectionCharts Diesel Instructions WEB

Additional information


Diesel Fuel Specific Gravity Syringe Set (60F), Diesel Fuel Specific Gravity Syringe Set (77F)