Monitoring hard particles in hydraulic systems and lubrication oil in gear boxes and generators.
Monitoring diesel fuel and engine lubricants aboard U.S. Navy and Military Sealift Command vessels.
Supplying commercial marine industry with lube and fuel sampling and test kits to maintain peak performance.
Monitoring diesel engine lubricants in heavy equipment and hard particles in fire-resistant hydraulic fluids.
Customers We Serve

Download the DSI Capabilities Brochure

DSI: Providing Oil and Fuel Testing Products for over 35 years

  • Since 1982, DSI has serviced a broad range of industrial, military, marine and mining organizations with quality supplies and rugged, state-of-the-art sampling and on-site test equipment for the analysis of lubricants, fuels and coolants.
  • We enjoy a solid reputation with customers for reliability, responsiveness, technical competence and demonstrated global distribution capability. We believe that maintaining long term relationships with our customers is a vital component of our mission. 

Thank you for your interest in exploring DSI's capabilities and services to support your business objectives. We look forward to being of service to you.




DSI now offers the portable and battery powered Oilcheck, a hand-held oil condition monitor from Parker. A numerical display provides a visual comparison between new and used oils. Oilcheck gives an early warning of impending engine failure, and the simplistic hand-held design makes it easy to use.


Download the Oilcheck brochure for detailed features and benefits, typical applications and product specifications.

Download this technical document that answers questions regarding the Oilcheck measurements and meter readings.

Contact for pricing and ordering information.