
Here are the reasons for high car fuel consumption: 1. Driver's driving habits: Apart from factors such as car design and engine, the real cause of wasted fuel is the driver's driving habits. Frequent sudden braking and rapid acceleration are the main reasons for increased fuel consumption. 2. Road conditions: Road condition factors include whether the road is smooth, the level of friction, the steepness of slopes, and whether the road is congested. Generally, roads with many sharp turns and frequent use of brakes will result in much higher fuel consumption. Additionally, fuel consumption during severe traffic congestion can be more than three times that during smooth traffic. 3. Maintenance: Poorly maintained engines can easily increase fuel consumption by 10% or 20%, and a dirty air filter may also lead to a 10% increase in fuel consumption. To maintain the car's optimal performance, it is best to change the engine oil every 5,000 kilometers and inspect the filters.

I've been driving this 2016 Elantra for several years and found there are many reasons for high fuel consumption. Don't drive too aggressively in daily use - sudden acceleration or hard braking will make fuel consumption skyrocket. Also, tire pressure needs to be maintained at standard values - low tire pressure increases friction and naturally raises fuel consumption. A dirty air filter restricts airflow, making the engine work harder and consume more fuel - I replace mine regularly. Worn spark plugs cause incomplete combustion, and they should be replaced on schedule. Faulty oxygen sensors lead to inaccurate fuel adjustment by the ECU, while dirty fuel systems or clogged fuel lines are also common factors. I suggest checking these areas frequently - regular maintenance can effectively reduce fuel consumption, being both safer and more economical. Slightly higher fuel consumption in winter is normal, but if it remains high long-term, you should visit a professional shop for inspection to prevent worsening conditions.

When I drive this 2016 Elantra and suddenly notice higher fuel consumption, the first thing to check is insufficient tire pressure—a common issue where soft tires increase resistance and waste fuel. A dirty air filter needs cleaning or replacement. Worn-out spark plugs lose efficiency and should be renewed. Poor driving habits like frequent sudden acceleration also raise consumption. Running the AC at high settings or carrying heavy loads can spike fuel usage too. DIY checks on tires and filters are cost-effective quick fixes. Maintaining steady speeds and minimizing AC use saves money, while regular maintenance like fuel system cleaning prevents clogs. Don’t ignore high fuel consumption—it could signal accumulating minor issues. Early fixes extend your car’s lifespan and help the environment.

If the Langdong has high fuel consumption, first check the tire pressure—low pressure increases rolling resistance. A clogged air filter affects engine efficiency. Worn spark plugs lead to incomplete combustion, wasting fuel. A faulty oxygen sensor sends incorrect signals, causing the ECU to misadjust fuel delivery. Or, dirty/clogged fuel lines may require cleaning. You can check tire pressure and replace the air filter yourself. If that doesn’t help, visit a shop to inspect spark plugs and test the sensor. Drive smoothly, avoid sudden braking to save fuel, and fix issues promptly to prevent bigger problems.

My 2016 Elantra has had high fuel consumption several times. Once, it was due to a heavily clogged air filter, and replacing it solved the issue. Another time, low tire pressure caused the fuel consumption to rise. Aggressive driving habits like sudden braking or rapid acceleration also increase fuel usage, and frequent use of the air conditioning adds to the burden. During maintenance, cleaning the fuel system and replacing the spark plugs showed significant improvement. It's recommended that owners regularly check tire pressure and maintain the air filter. These simple actions can reduce fuel consumption, prevent major repairs, save money, and be environmentally friendly.


