
The Haval H4 is equipped with the GW4G15F engine, which delivers a maximum horsepower of 150 HP, a maximum power output of 110 KW, a maximum power speed range of 5600-6000 rpm, and a maximum torque of 210 Nm. The engine for the Haval H4 is produced at one of Haval's two engine production bases, located in the Xushui factory and the Tianjin factory. For daily maintenance of the Haval H4's engine, the following methods can be applied: Use lubricating oil of the appropriate quality grade. For gasoline engines, select SD--SF grade gasoline engine oil based on the additional equipment of the intake and exhaust systems and usage conditions. For diesel engines, choose CB--CD grade diesel engine oil according to mechanical load, ensuring the selected standard is not lower than the manufacturer's requirements. Regularly change the engine oil and filter. The quality of any grade of lubricating oil will degrade over time. After a certain mileage, its performance deteriorates, leading to various engine issues. To prevent malfunctions, change the oil regularly according to usage conditions and maintain an appropriate oil level. As oil passes through the fine pores of the filter, solid particles and viscous substances accumulate in the filter. If the filter becomes clogged and oil cannot pass through, it may rupture the filter or bypass it, carrying contaminants back to the lubrication areas, accelerating engine wear and increasing internal pollution. Periodically 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 particles from component wear to form sludge. In small amounts, it remains suspended in the oil, but in larger quantities, it precipitates, clogging filters and oil passages, making engine lubrication difficult and causing wear. Regularly use a radiator cleaner to flush the radiator. Removing rust and scale deposits not only ensures the engine operates properly but also extends the overall lifespan of the radiator and engine.

I've been driving a Haval H4 for almost three years now, and all models in this series are equipped with a 1.5T turbocharged engine. My 2019 model is the lower-power version with 150 horsepower, which is completely sufficient for city driving and handles uphill climbs effortlessly. According to the 4S dealership, the new version has been upgraded to a 169 horsepower high-power variant, offering more vigorous acceleration. This engine is relatively quiet at startup, but you can clearly hear the turbo sound during hard acceleration. Maintenance isn't expensive either, with minor services costing around 400-500 RMB each. What satisfies me the most is the fuel consumption—around 8L/100km in the city and dropping to 6.5L/100km on highways, which is quite economical for such a large SUV.

After researching many domestic car engines, the 1.5T used in the Haval H4 belongs to Great Wall's self-developed GW4B15 series. It comes in two versions with different power outputs: 150 horsepower and 169 horsepower. It features a distinctive technology called CVVL (Continuously Variable Valve Lift), which improves fuel efficiency at low speeds and enhances power at high speeds. However, there might be slight vibrations during cold starts, but they stabilize after driving for two to three minutes. The engine is paired with either a 6-speed manual transmission or a 7-speed dual-clutch transmission. The dual-clutch option is recommended for smoother gear shifts.

The Haval H4 comes with only one engine option: a 1.5T. I test drove the new model last year, and the 169-horsepower high-power engine delivers immediate response when you step on the gas. You can clearly feel the turbo kick in around 1,800 rpm, giving the car a noticeable surge forward. The chassis tuning leans toward comfort, and engine vibrations are well filtered when going over speed bumps. The 2023 model now adds a 48V mild hybrid system, making starts even more effortless. This same engine is also used in the Haval H6, so there's no need to worry about technical maturity. The maintenance interval is every 7,500 kilometers, which is more practical than some joint-venture models.


