What are the defects of the Blue Whale engine?
2 Answers
Blue Whale engine defects: The manufacturing process is complex, making the engine expensive. When the engine operates at high speeds, noise easily enters the cabin. The intricate and precise engine technology also poses challenges for after-sales services, making maintenance difficult. Introduction to the Blue Whale engine: The Blue Whale engine is independently developed by Changan and represents domestic technology. It delivers a maximum of 233 horsepower and 360Nm of torque. While offering powerful performance, it also demonstrates low fuel consumption and was named one of the "China Heart" Top 10 Engines in 2017. Currently, the Blue Whale engine is only available in a 2.0L displacement and is used in Changan's premium SUV, the CS95. As a result, the technology has not yet been widely adopted in 1.0T or 1.5T engines. Another reason is the high manufacturing cost, which makes it difficult to match with other lower- and mid-range Changan models due to cost constraints. Highlights of the Blue Whale engine: "AGILE" high-efficiency ultra-clean combustion system; the world's first mass-produced Schaeffler intelligent cam phasing system; China's first mass-produced fully variable displacement oil pump; the industry's pioneering TMM intelligent thermal management system; dual-scroll electronically controlled turbocharging.
I use the Blue Whale engine in my own car, and after driving it for nearly two years, I've noticed several common issues. First is the fuel consumption problem—the official claim is 6 liters per 100 km, but during peak urban commuting hours, it can exceed 8 liters, and it's even worse in traffic jams. The noise is also quite annoying; when driving over 100 km/h on the highway, the engine compartment buzzes like an old tractor, making it hard to enjoy music or conversation. The power output isn’t stable either—occasionally, there’s a slight shake during cold starts, or a lack of power when climbing hills, causing automatic speed reduction. My friend’s car has the same issues, and he suspects it might be related to ECU tuning. Another problem is that the fuel injectors tend to accumulate carbon deposits over time, requiring regular cleaning to prevent performance degradation. While these issues aren’t fatal, proactive maintenance is necessary to prevent worsening. I recommend regular oil changes and cooling system checks.
