Caterpillar Oil & Gas Launches the Engine Idle Reduction System (EIRS)

Houston, Texas – Caterpillar Oil & Gas is pleased to announce the launch of the new Engine Idle Reduction System (EIRS). The Engine Idle Reduction System, also called EIRS, is an advanced way of optimizing fuel usage and non-productive engine idle time.

With the ability to decrease idle time by 60 percent, EIRS can provide significant reductions in equipment operating costs by eliminating unnecessary idle fuel consumption and extending preventative maintenance intervals. Additionally, EIRS reduces manpower and maximizes equipment utilization.

“EIRS is all about value. It enables pressure pumping customers with a cost-effective way to reduce spend on fuel and maintenance, and lower emissions, all without compromising on the long-standing reputation for durability which defines Cat® engines.” Jason Herlehy, Product Definition Manager for Caterpillar Oil & Gas.

While the engine idles in between pumping stages, EIRS will automatically stop the engine and then use an electric starter to restart it as needed to keep the equipment ready to work. An integrated engine pre-lube system ensures that the engine continues to deliver industry-leading durability even with the more productive duty cycle.   And, by eliminating the need for additional operator intervention throughout the run time, EIRS makes operating the equipment both easier and safer.

The new Engine Idle Reduction System is available as a factory-installed option or as a retrofit for both the Cat 3512C and 3512E engines. Additionally, engines equipped with EIRS will continue to meet the EPA Tier 4 Final emissions certification.

To learn more about EIRS, contact your local Cat Dealer or visit


About Caterpillar Oil & Gas:

Caterpillar Oil & Gas, Caterpillar Inc.’s oil and gas division with headquarters in Houston, Texas, consolidates all the sales and service activities for Cat oil and gas power solutions. Since the 1930s, Caterpillar has manufactured engines for the oilfield and today provides premier power solutions with outputs from 31 to 16,000 kW.  The sales and service network includes more than 2,100 dealer locations worldwide dedicated to supporting customers in the drilling, production, well service and gas compression segments. More information is available at:

About Caterpillar

For over 90 years, Caterpillar Inc. has been making sustainable progress possible and driving positive change on every continent.  Customers turn to Caterpillar to help them develop infrastructure, energy and natural resource assets. With 2017 sales and revenue of $45.5 billion, Caterpillar is the world’s leading manufacturer of construction and mining equipment, diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives.  The company principally operates through its three product segments - Construction Industries, Resource Industries and Energy & Transportation - and also provides financing and related services through its Financial Products segment.  For more information, visit  To connect with us on social media, visit

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