API Fuel Hydrometer Set


  • #2951L 11” API Fuel Hydrometer at 60°F with Certificate of Conformance
  • 12” Pyrex Test Jar with Green Plastic Base and cleaning Brush
  • Deluxe Storage Case


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…


  • Heavy Duty, Industrial Grade
  • 29 – 51 A.P.I. Scale (Quality Diesel should be approximately 35 A.P.I.)
  • Built in Temperature Compensation
  • High Quality Fuel resistant rubber parts
  • All in one design for minimal mess
  • Quantity Discounts Available

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.