Why is the Changan Oshan X5 fuel-consuming?
3 Answers
Changan Oshan X5 is actually not fuel-consuming, with a real fuel consumption of 6-8.6L/100km, which is among the top levels for an SUV. Below is an introduction to the Oshan X5: Body Appearance: The Changan Oshan X5 adopts a dynamic plastic light design, featuring a new plastic light design aesthetic that shapes the body with light and hides strength with shadows, creating the most exciting flow of light and shadow. It boasts a rare low and wide body in its class, with a golden ratio of 0.606, presenting a unified flow of light when stationary and an exciting light effect when in motion. Power: The Changan Oshan X5 is equipped with the Blue Whale NE1.5T engine, the only one in its class with a dual-outlet cylinder head integrated exhaust manifold + dual-scroll electronically controlled turbocharger, delivering a maximum power of 132kW and a maximum torque of 300N·m, with a strong horsepower of 180. It is also paired with a wet 7DCT automatic transmission.
I just bought a Changan Oshan X5 a few months ago and feel the fuel consumption is indeed a bit high, which is closely related to my driving habits. In city traffic jams, I can't help but frequently accelerate hard and then brake suddenly, burning extra fuel with every start. I also noticed the tire pressure is often too low—the standard is 2.5 bar, but my car often runs below 2.0, increasing rolling resistance and causing fuel consumption to rise. The spark plugs have also aged, leading to inefficient ignition and incomplete fuel combustion. When the air filter gets too dirty, the engine doesn't get enough airflow, wasting gasoline. After regular maintenance, replacing the filter, and adjusting the tire pressure, the fuel consumption dropped a bit. I suggest driving slower and steadier, avoiding rushing during peak hours in the city—this way, the car lasts longer and saves fuel costs.
After years of car repair, I often encounter complaints from Auchan X5 owners about excessive fuel consumption. The main issues likely lie in the engine system. For example, carbon buildup in the turbocharger can cause it to seize and become inflexible, reducing fuel efficiency by half. Cleaning or replacement is necessary to restore normal operation. Wear in the transmission system or loose bearings can lower power transfer efficiency, wasting fuel. The ECU control module malfunctioning and causing excessive fuel injection should be checked first; use diagnostic equipment to scan for error codes to confirm. Not changing the engine oil on time can lead to thickening, increasing engine burden. It's recommended to have a check-up every 5,000 kilometers, focusing on whether the oxygen sensor is malfunctioning—if exhaust monitoring is out of control, fuel consumption will skyrocket. Daily driving habits like avoiding overloading or prolonged idling can also help alleviate the issue.
