From a logistics soldier driving military trucks in the barracks to a long-haul transporter now running the dedicated route between Xi'an and Fuzhou, Li Zhongyuan from Linyi, Shandong, has been associated with trucks for nearly three decades and possesses a profound understanding of vehicles.

　　Today, his companion on the road is a Shaanxi Automobile Delong X6000 gas heavy-duty truck. The key to his operational profitability lies in the vehicle's core power—the WEICHAI WP15NG560E61 natural gas engine. In an era of low freight rates and high costs, this powerful "WEICHAI heart" has become his source of confidence in facing market competition.

Economic Efficiency That Leaves No Stone Unturned

　　For independent transport operators, calculating costs is a daily task. Li Zhongyuan deeply feels this: "In recent years, freight rates have been getting lower, down by about a third compared to before."

　　Before switching to this Delong X6000 equipped with the WEICHAI gas engine, he drove a diesel truck: "For a round trip, the fuel cost of my old diesel truck was over RMB 1,000 more than now." With about seven trips per month, the new truck saves him over RMB 7,000 in fuel costs alone.

　　This excellent economy stems from the core technology of the WEICHAI engine. Built on a high-thermal-efficiency platform and paired with a high-efficiency turbocharger and an intelligent combustion control system, the WP15NG engine achieves deep optimization of gas consumption. It offers significant gas-saving advantages even among similar gas trucks, and the difference compared to diesel trucks is even more pronounced.

　　Besides saving gas, this engine also saves Li Zhongyuan another fixed expense: "My old diesel truck would cost over RMB 200 just for urea on a single trip. This gas truck doesn't use any at all."

　　WEICHAI's engine adopts the "stoichiometric combustion + EGR + three-way catalytic" technology path, meeting China VI emission standards without the need for a urea injection system. This reduces consumable costs and simplifies routine maintenance.

　　The tangible economic benefits give Li Zhongyuan a relaxed attitude—"earn more, spend more; earn less, spend less"—and provide a solid foundation for his continued operations.

Powerful, Torque-Rich Performance

　　In the transport industry, efficiency is paramount. The Xi'an-Fuzhou route Li Zhongyuan runs is over 1,200 kilometers one way. Excluding time for rest and meals, he spends about 15 hours driving. This high-intensity schedule demands strong and stable power from the engine.

　　The WEICHAI WP15NG engine delivers a maximum of 560 horsepower and a peak torque of 2600 N·m within the common operating range of 950-1350 rpm. This robust low-end torque means effortless starts and hill climbing.

　　Li Zhongyuan states, "I always run at full legal load, and even fully loaded, I've never encountered a hill I couldn't climb. The power reserve is more than enough, giving me great confidence. Overtaking and climbing feel excellent."

　　Behind this "excellent feel" lies the confidence and absolute control provided by WEICHAI's power, ensuring Li Zhongyuan delivers every load on time and maintains his good reputation with customers.

Rock-Solid Reliability

　　For Li Zhongyuan, who spends over 300 days a year living in his truck, vehicle reliability is the foundation of all performance. Any unexpected breakdown means delays and losses. WEICHAI power has long been recognized as an industry benchmark for high reliability.

　　Through a series of optimized designs—such as exhaust pipe stress relief and enhanced cylinder head cooling—heat load on critical components is effectively reduced, enhancing product durability from the source.

　　"Even after seven or ten years, this truck should still be able to run normally," Li Zhongyuan said, expressing his high recognition of WEICHAI's long-lasting durability. This trust allows him to confidently undertake high-intensity dedicated route transport tasks.

　　At the same time, WEICHAI's nationwide network of over 2,000 service outlets forms a powerful after-sales support system. Service commitments like "15-minute response, 2-hour arrival, 4-hour repair" provide a solid backup for long-haul drivers like Li Zhongyuan, completely eliminating their worries.

　　From his military service days, Li Zhongyuan has been connected to the transport industry for nearly thirty years. His life's journey reflects the rapid progress of China's heavy-duty truck technology, especially in the engine sector. From the simple pursuit of "ruggedness and durability" to today's comprehensive consideration of gas saving, power, reliability, and comfort, user needs have evolved, but WEICHAI's ability to precisely meet the core demands of frontline transporters remains unchanged.

　　For him, choosing WEICHAI means choosing a more economical, efficient, and reliable way of operating. This powerful "Heart of China" not only drives the truck on the highway but also carries the heavy responsibility of supporting a family and his hopes for a better future.