Cat® Dynamic Gas Blending (DGB) System Receives CARB Certification

Houston, TexasCaterpillar Global Petroleum today announced that the Cat Dynamic Gas Blending System for Cat® 3512C Land Drilling applications received off-road aftermarket parts certification from the California Air Resources Board (CARB). The Cat DGB system is certified for use with fuels with a Lower Heating Value (LHV) of between 905 BTU/scf to 1250 BTU/scf, giving operators a wide range of fuel options while meeting Tier 2 emission levels.

“As a result of this certification from CARB, Caterpillar is the sole manufacturer currently offering an independently evaluated and certified alternative fuel retrofit kit for high horsepower drilling applications,” noted Bart Myers, Caterpillar Global Petroleum product director. “When combined with the fuel savings opportunity, robust safety features, and worldwide product support through the CAT Dealer Network, CARB certification over a range of gaseous fuels is yet another addition to the value DGB is providing to its end users.”

The Dynamic Gas Blending kit automatically adjusts to changes in incoming fuel quality and pressure allowing engines to run on a wide variety of fuels, from associated gas to vaporized LNG with no loss of performance integrity. It maintains diesel performance levels with up to 70 percent replacement of diesel with gas, accepts up to 55 percent inerts and can be applied to existing engines with EPA certification or exemption. No customer input or gas analysis is needed during operation, and no recalibration is required when the equipment is moved or the gas supply changes.

Caterpillar will offer both a CARB certified kit as well as a non-certified kit for non-regulated areas. Cat Dynamic Gas Blending kits are backed by the worldwide Cat dealer network with trained technicians to ensure service support is never out of reach.  More information regarding the CARB Executive Order for DGB can be found at (  To learn more about the comprehensive Cat solutions for the land drilling industry, visit, follow us on Facebook: & Twitter:

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 About Caterpillar Global Petroleum

Caterpillar Global Petroleum, Caterpillar Inc.’s oil and gas division with headquarters in Houston, Texas, groups 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 world-wide dedicated to support customers in the drilling, production, well service and gas compression segments. More information is available at:

About Caterpillar

For more than 85 years, Caterpillar Inc. has been making progress possible and driving positive and sustainable change on every continent. With 2012 sales and revenues of $65.875 billion, Caterpillar is a technology leader and the world’s leading manufacturer of construction and mining equipment, clean diesel and natural gas engines and industrial gas turbines. More information is available at

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