Weichai Engine Series Wins International Green Design Award

- The engine achieved a record-breaking brake thermal efficiency of 53.09%, a significant leap from the 46-48% BTE of current state-of-the-art engines from U.S. and European manufacturers. This milestone was certified by international testing organization TÜV SÜD and the China Automotive Technology & Research Center. - Weichai has progressively broken its own world records, increasing thermal efficiency from 50.23% in 2020 to 51.09% and 52.28% in 2022. The company states the latest advancement can improve a heavy-duty truck's fuel economy by 14%, potentially saving 12,000 liters of diesel annually per vehicle. - The award was presented by the World Green Design Organization (WGDO), a non-profit with "Special consultative status" with the UN Economic and Social Council. Weichai also received the "Green Design International Contribution Award," becoming the first company in the global engine industry to be so honored. - This focus on efficiency comes as U.S. manufacturers face stricter EPA standards for model year 2027 heavy-duty engines, which mandate an 82.5% reduction in nitrogen oxide (NOx) emissions compared to current levels. - The new EPA rule also extends the mandatory "useful life" period for heavy-duty trucks to 650,000 miles and increases the emissions-related warranty requirement from 100,000 to 450,000 miles, placing greater emphasis on long-term component durability and compliance. - The achievement highlights intensifying competition amid US-China trade tensions, which have slowed U.S. business investment and prompted manufacturers to diversify supply chains away from China to countries like Mexico and Vietnam to mitigate tariff risks