6″ API Fuel Hydrometer w/Test Jar


  • #2951 6” Fuel Hydrometer at 60°F
  • 7” Pyrex Test Jar w/ Green Base and Cleaning Brush


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
  • 29 to 51 API (Quality Diesel should be approximately 35 API)
  • 7″ Pyrex Glass Test Jar with plastic base
  • Quantity Discounts Available
  • Hand-Made in the USA!

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.