Is the JL473ZQ2 Engine a Blue Whale Engine?
2 Answers
JL473ZQ2 engine is a Blue Whale engine. Here is the relevant introduction: Blue Whale Engine: The Blue Whale engine is a self-developed engine by Changan. All engines in the Blue Whale series adopt an integrated exhaust manifold design, which enhances exhaust efficiency, improves engine warm-up performance, and, when paired with a twin-scroll turbocharger, further maximizes power output. Technical Level: The development of Changan's Blue Whale engine has moved away from the traditional reverse-engineering approach, adhering to independent R&D. After six years of effort at Changan's UK Engine R&D Center, the Blue Whale 2.0T-GDI engine was successfully developed, breaking the technological monopoly of foreign companies and filling the gap in domestic development capabilities for 2.0L and above turbocharged direct-injection engines. During the R&D process, Changan applied for 74 patents, including 24 invention patents.
I've read a lot of discussions on car forums before, and the JL473ZQ2 engine is indeed part of Changan's BlueCore series, which I often recommend to friends. It's used in models like the UNI-T, featuring a 1.5T turbocharged design that delivers good power while being fuel-efficient, averaging just over 7L per 100km in city driving and dropping to around 6L on highways. The BlueCore series emphasizes high efficiency and energy savings, with the JL473ZQ2 achieving this through low friction and intelligent tuning, providing smooth acceleration, especially in stop-and-go traffic without any sluggishness. However, maintenance is key—like changing the oil every 5,000 kilometers, using high-quality synthetic oil to prevent carbon buildup, and addressing aging sensors or spark plugs that might cause minor issues. Regular check-ups can help avoid unexpected breakdowns. Overall, its reliability is solid; if you're buying used, check the maintenance records to ensure no major overhauls—it can reliably last up to 100,000 kilometers without significant problems.
