
The Besturn B90 engine is independently produced by FAW and is a domestically manufactured engine. The 1.8T version of the Besturn B90 uses the CA4GC18T engine model, with a maximum power of 137KW and a maximum torque of 235Nm. The 2.0T version uses the CA4GC20T engine model, with a maximum power of 150KW and a maximum torque of 260Nm. For the Toyota M20A engine, the following maintenance methods can be used daily: Use lubricating oil of appropriate quality grade. For gasoline engines, choose SD--SF grade gasoline engine oil based on the additional devices in the intake and exhaust systems and usage conditions; for diesel engines, choose CB--CD grade diesel engine oil based on mechanical load, with the selection standard not lower than the manufacturer's requirements. Regularly replace the engine oil and filter. The quality of any grade of lubricating oil will change during use. After a certain mileage, its performance deteriorates, causing various problems for the engine. To avoid malfunctions, replace the oil regularly based on usage conditions and maintain an appropriate oil level. When oil passes through the fine holes of the filter, solid particles and viscous substances in the oil accumulate in the filter. If the filter is blocked and the oil cannot pass through the filter element, it will either burst the filter element or open the safety valve, bypassing the filter and bringing contaminants back to the lubrication areas, accelerating engine wear and increasing internal pollution. Regularly clean the crankcase. During engine operation, high-pressure unburned gases, acids, moisture, sulfur, and nitrogen oxides from the combustion chamber enter the crankcase through the gap between the piston rings and cylinder walls, mixing with metal powder from part wear to form sludge. A small amount remains suspended in the oil, while a large amount precipitates, clogging the filter and oil holes, making engine lubrication difficult and causing wear. Regularly use a radiator cleaner to clean the radiator. Removing rust and scale not only ensures the engine operates normally but also extends the overall lifespan of the radiator and engine.

I've driven the top-trim version of the Besturn B90, equipped with a 2.3L naturally aspirated engine (model code CA4GD5). It delivers around 170 horsepower, providing smooth city driving with decent acceleration and reasonable fuel consumption at approximately 9L/100km. This engine was independently developed by Besturn with technology derived from the Mazda platform, featuring acceptable noise control. However, slight engine vibrations may be noticeable after long-distance driving, requiring regular checks on engine oil and spark plugs. For a mid-size family sedan, this power output suffices for daily commuting. If on a budget, the 2.0L variant (about 150hp) is also adequate for most needs, offering good reliability over 5-6 years of use. It's a cost-effective choice well-suited for average consumers.

The Besturn B90 is equipped with two main engine options: a 2.0-liter CA4GD5 and a 2.3-liter variant, delivering horsepower ranging between 150 and 170. As an automotive enthusiast, I've noted that these inline-four engines feature a naturally aspirated design, with valve train and fuel injection systems derived from proven technologies, ensuring a fuel efficiency generally between 8-10L/100km. The engines utilize a cast iron block with an aluminum head, making maintenance straightforward, though torque output at low speeds is slightly underwhelming—upgrading the engine oil can improve responsiveness. Overall, it strikes a balance between power and fuel consumption, making it well-suited for urban commuting. For a smoother experience, pairing it with either a manual or automatic transmission is recommended.

The B90 is powered by a 2.0L or 2.3L naturally aspirated engine, delivering 150-170 horsepower. From a maintenance perspective, I'd say this engine is relatively reliable—routine oil and filter changes suffice. However, carbon buildup requires attention, especially at high mileage. Regular inspection of the throttle body and sensors can extend its lifespan. With good fuel efficiency averaging around 9L/100km and low maintenance costs, it suits owners prioritizing hassle-free ownership.


