Conway Beam Leasing case study

semi truck 18 wheeler sunrise on highway

Extend oil drains and reduce engine failures

Mobil Delvac™ Extreme helps Conway Beam Leasing extend oil drains and reduce engine failures


To improve fleet efficiency and uptime

  • Volvo and Mack Trucks
  • Rochester, New York, United States


Conway Beam Leasing, a premier sales and rental company, operates over 600 Volvo and Mack trucks with both local and long haul services across the Unites States. With a quickly growing fleet, Ed Dunlop, Director of Operations, desired to reduce the Total Cost of Ownership for the fleet through extended oil drains and improved preventative maintenance. Ed believed that through oil analysis they could achieve these goals. To help achieve this goal, Conway Beam Leasing approached us as their lubricants distributor.

Close up of hand car mechanic refueling and pouring oil fill the oil in the engine, maintenance, and performance in auto repair shop.


The Mobil ServSM Engineering team and our Lubricants team evaluated the fleet's oil program. After conducting a thorough evaluation, the decision was made to change the engine oil to Mobil DelvacTM Extreme 10W-30, which is capable of doubling OEM -recommended oil drain intervals. Additionally, the team helped implement Mobil ServSM Lubricant Analysis to monitor component and oil health while also capitalizing on the enhanced product performance characteristics.


After implementing the new strategy built around Mobil DelvacTM Extreme 10W-30 engine oil, Conway Beam Leasing was able to safely extend oil drain intervals to 55,000 miles.

Additionally, through the expertise of the Mobil Serv Engineering team and our team, Conway Beam Leasing was able to proactively catch and correct six catastrophic engine failures. This resulted in the company's estimated savings of over $133,000.

Download the full case study

*This Proof of Performance is based on the experience of a single customer. Actual results can vary depending upon the type of equipment used and its maintenance, operating conditions and environment, and any prior lubricant used.

**Visit to learn how certain Mobil-branded lubricants may provide benefits to help reduce environmental impact. Actual benefits will depend upon product selected, operating conditions and application.

Copyright © 2020 Exxon Mobil Corporation. Mobil, Mobil Delvac, Mobil and Delvac 1 are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless otherwise noted. For the purposes of this document, ExxonMobil shall include Exxon Mobil Corporation and its affiliates.

Speak to a team member

Contact us today to find out more about our product offerings, to ask us any questions, or to let us know how we can assist you with a specific application.