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D8 dozer feul efficiancy8/28/2023 ![]() The curve then decreases and bottoms out through the engine’s expected service life before another rise is experienced as the engine approaches its first rebuild. If a new piece of construction equipment experiences an engine failure, it will be soon after delivery. He also describes a “bathtub” engine failure curve common to any type or brand of machinery. “That’s not saying the engine must be rebuilt during this window, but the longer it is pushed beyond this sweet spot, the increased risk of parts being damaged beyond reuse guidelines and requiring replacement, which increases the cost of the rebuild.” “For the 15-liter engine, a contractor should plan for a rebuild somewhere in between 150,000 to 180,000 gallons of fuel burned,” he says. Scott Harmon, senior parts & service marketing consultant-Cat Reman sales and marketing, says there is a sweet spot for rebuilding. Using this rule of thumb, a fleet manager could expect to rebuild the 15-liter Cat C15 engine powering a Cat D8 dozer after burning about 150,000 gallons of fuel. The harder a machine works, the more fuel consumed and the sooner the engine will need to be rebuilt, so f uel burn is a better indicator for engine life.”Īlthough contingent upon multiple external factors, the fuel burn rule-of-thumb calculation multiplies engine liter size by 10,000 gallon of fuel burned. “Some try to ballpark engine hours,” says Trent Simpson, product manager for Cat Reman engines and components, “but that can vary, based on workload. From the basics of how well the engine is maintained and if spec replacement filters are used to the engine’s workload and idle time, this component’s first life can greatly vary.įor fleet management purposes, manufacturers such as Caterpillar and its authorized dealers such as Foley Equipment have developed a fuel burn rule-of-thumb to give a customer an idea of how long an engine should last before needing to be rebuilt. ![]() ![]() ![]() That can be a loaded question, as there are many variables in determining how long an engine will last. This article was supplied by Caterpillar. “The powertrain is on many of our customers’ minds, even at the time of purchase,” says Scott Tolley, product support sales specialist for Foley Equipment, a Caterpillar dealer based in Wichita, Kansas, who has been involved in many powertrain rebuilds over the years. When acquiring a piece of construction equipment, many equipment managers ask dealers one common question: How long will the engine run before a rebuild is needed? ![]()
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