Canadian Mining Journal


HAUL TRUCKS: Caterpillar to offer dual fuel retrofit kit for 785C

PEORIA, Ill. – Caterpillar will offer its dynamic gas blending retrofit kit for the Cat 785C mining truck. Cat Dynamic Gas Blending (DGB) technology allows engines to run on both diesel and liquefied natural gas (LNG). DGB lowers fuel cost while maintaining diesel power and transient performance.

Retrofitting a Dynamic Gas Blending kit on a Cat 795C truck can save up to 40% on fuel costs without sacrificing performance.

The 785C retrofit kit is the first DGB system Caterpillar has offered for mining machines, and it will be available for purchase in January 2018 from the global Cat dealer network. Caterpillar will offer additional DGB systems in the future.

“The retrofit kit is built on proven Cat DGB technology and has been used in the oil and gas industry since 2013. The retrofit kit offers a peak substitution of up to 85% of diesel with natural gas and gets the same performance, reliability and payload as a diesel truck,” said  Steve Igoe, commercial manager for Caterpillar’s Gas Engine Business. “This will allow our customers to realize a 20% to 40% savings on fuel costs, which can represent millions of dollars each year for a large mine.”

To learn more about dynamic gas blending, contact your local Cat dealer or visit

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