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Whether you’re an owner/operator or fleet manager, you need to keep those wheels turning – and you need a partner who is going to be with you over the long haul.

Backed by more than 150 years of expertise, Mobil™ heavy-duty lubricants are designed to protect your fleet and keep your vehicles on the road and out of the garage.

While keeping your equipment running at peak condition, our industry-leading products – including Mobil Delvac™ – can extend oil drain intervals, lowering costs through reduced lubricant consumption, labor, and disposal costs.

We also provide services that help you maximize every mile. 

The Mobil Delvac Optimized Oil Drain Interval Program

To help achieve their business and sustainability-related objectives, trucking fleets, construction firms, and mining companies are always looking for ways to successfully extend oil drain intervals.

At ExxonMobil, we are proud to offer our Mobil DelvacTM Optimized Oil Drain Interval Program. This data-driven process has, for many years, helped successful companies to:

  • Determine the optimal drain interval for their commercial vehicles and equipment
  • Achieve the lowest total operating cost per mile without sacrificing engine reliability or durability

Besides helping to save money on maintenance costs, a successful, extended oil drain interval program can help trucks and commercial equipment run more miles or operate longer with each gallon of oil, which is good for a company’s bottom line and the environment.

ExxonMobil engineers have invested countless hours and resources to develop our unique, data-driven process of extending drain intervals. This approach enables us to deliver a customized preventive maintenance service schedule that is designed for a company’s unique characteristics and business objectives.

Every step of the way, we engage our customers, reviewing data with engineering and maintenance teams and educating support staff. We also engage the company’s OEM partners, which helps ensure alignment with engine warranty and policy implications due to the extended oil drain intervals.

The Mobil Delvac Optimized Oil Drain Interval Program Advantage


The Mobil Delvac Optimized Oil Drain Interval Program identifies the point at which drain intervals are the most cost-efficient. At ExxonMobil, in addition to high-performance, heavy-duty lubricants, we have a wide range of tools and expertise to bring these services to life, including:

  • State-of-the-art technology
  • Laboratories and facilities
  • Data-driven methodology and analytical tools
  • Specialized engineering services
  • Dedicated and experienced engineers
  • Working relationships with leading OEMs

The four states of the Mobil Delvac Oil Drain Interval Program

Establishing an optimized oil drain interval is a lengthy process. It can be labor and time-intensive. But the potential benefits can be exceptional. So how do we do it?

Stage 1: Feasibility analysis – A thorough analysis of the fleet's current duty cycle and maintenance practices allows us to test different optimized oil drain interval scenarios in order to quantify potential cost savings and sustainability-related benefits. 

Stage 2: Field test – A series of in-service testing programs, which may span up to a year or more, can help validate whether the fleet or company can operate efficiently on the proposed targeted service intervals with a margin of safety. 

Stage 3: Evaluating Results – A thorough data analysis will help ensure that the service interval recommendations are safely achievable. 

Stage 4: Ongoing Program Maintenance – Periodic reviews and continued customer education will help ensure that business objectives are being achieved and program protocols are being followed. 

Have questions?

Learn more about what the Mobil Delvac Oil Drain Interval Program can do for your fleet. 

Contact your STERN representative today for more information. 

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Material Safety and Product Data Sheets

For information on how to safely handle, use and store Mobil lubricants, please refer to its specific Safety Data Sheet (SDS) or Product Data Sheet (PDS).

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