My 2011 Comfort version has the AC on all the time, usually set around 26°C! The fuel consumption is around 10 liters. I hardly use the sport mode. Is there any way to reduce it to the 7-8 liters you guys mentioned? (I'm planning to change the engine oil to 30, as well as the transmission oil and spark plugs soon.)

I own a 2014 SsangYong Korando, 2WD high trim, 2.0 gasoline. Recently, the check engine light occasionally turns on with the error code indicating a misfire in cylinder 1. Sometimes it turns off by itself. I've swapped spark plugs between cylinder 1 and 2, ignition coils between cylinder 1 and 3, and even swapped the injectors. I planned to use elimination to check if it's the injector issue, but after each swap, the misfire code for cylinder 1 still comes back eventually! The engine idles with slight vibrations, but I don't feel any power loss on the highway—it easily goes over 160 km/h. Later, I measured the cylinder pressure: cylinder 1 is at 8 kg, while the others are over 10 kg. After researching online, I suspect it's an exhaust valve issue. Now I'm really torn. Should I just let it be, or go for a major repair? I read online that some people can fix it by opening the cylinder head without removing the engine. But the local big auto shop is no more, and the private mechanic suggests removing the engine, which I really don't want to do—worried it won't fit back as perfectly as the original. It's stressful because I bought this as a first car for my father, who has loved cars all his life, and now this happens. I've been to various places without a clear diagnosis. Some say it's slight cylinder wear, some say valve leakage, and others mention cylinder head design flaws. Any advice from fellow Korando owners on how to solve similar issues would be greatly appreciated!

Maintenance guide for the 2007 Opel Astra: 1. **Regular Oil Changes**: Ensure you change the engine oil and oil filter every 5,000 to 7,500 miles to keep the engine running smoothly. 2. **Brake System Check**: Inspect brake pads and discs regularly, approximately every 10,000 miles, and replace them as needed to ensure safety. 3. **Tire Maintenance**: Check tire pressure monthly and rotate tires every 6,000 to 8,000 miles to ensure even wear and prolong tire life. 4. **Air Filter Replacement**: Replace the air filter every 15,000 to 30,000 miles to maintain optimal engine performance. 5. **Coolant Level**: Check and top off the coolant level regularly to prevent the engine from overheating. 6. **Battery Check**: Ensure the battery terminals are clean and the battery is functioning properly, especially before winter. 7. **Transmission Fluid**: Inspect and, if necessary, replace the transmission fluid every 30,000 to 60,000 miles to ensure smooth gear shifts. 8. **Spark Plugs**: Replace spark plugs every 30,000 miles to maintain fuel efficiency and engine performance. 9. **Suspension and Steering**: Regularly inspect the suspension and steering components to ensure a comfortable and safe ride. By adhering to this maintenance schedule, you can help ensure your 2007 Opel Astra continues to perform reliably.

My 2011 Comfort version has the AC on all the time, usually set around 26°C! The fuel consumption is around 10 liters. I hardly use the sport mode. Is there any way to reduce it to the 7-8 liters you guys mentioned? (I'm planning to change the engine oil to 30, as well as the transmission oil and spark plugs soon.)

Does the 2013 Volkswagen Touran with a seven-speed dual-clutch automatic transmission need a transmission oil change? At how many kilometers should it be changed? It's been eight years and 80,000 kilometers, always serviced at the dealership. The dealership has changed the brake fluid, spark plugs, and coolant but hasn't mentioned changing the transmission oil.

Your 2016 model X3 with the Smart Connect 3 joy gear consumes about 6.6 liters per 100 km on the highway, around 7 liters in the city, and approximately 8 liters on mountain roads. Is this normal?

I have a 2021 2.0F1A manual Euro Victory, and when I shift from 2nd to 3rd to 4th gear and accelerate, there's a clicking sound between 1100 and 1400 RPM, like it's low on oil. Does anyone else experience this? Once the RPM reaches around 1500 and the turbo kicks in, the sound starts to decrease. The 4S shop upgraded the ECU, but the sound is still there, whether the AC is on or off.

Congratulations on getting your driver's license and your 2012 manual March! When it comes to maintaining a second-hand car, there are a few key things you should check and possibly replace: 1. **Engine Oil**: It's essential to change the engine oil and oil filter regularly to keep the engine running smoothly. 2. **Brake Fluid**: Check the brake fluid level and consider flushing and replacing it if it's old or contaminated. 3. **Coolant**: Ensure the coolant is at the proper level and in good condition. Replace it if necessary. 4. **Transmission Fluid**: Since your March is manual, check the transmission fluid and change it if it's dirty or hasn't been replaced in a while. 5. **Power Steering Fluid**: If your car has power steering, check the fluid level and condition. 6. **Air Filter**: Inspect the air filter and replace it if it's dirty to keep the engine breathing well. 7. **Spark Plugs**: Check the condition of the spark plugs and replace them if they're worn out. 8. **Tires**: Check tire pressure and tread depth. Rotate the tires if needed and ensure they are in good condition. 9. **Battery**: Check the battery condition and clean any corrosion on the terminals. Regular maintenance is key to keeping your car in good shape. Make sure to follow the maintenance schedule recommended in your vehicle's owner's manual.

For a 12-year-old car that has already run 190,000 kilometers and is experiencing a lack of power when starting, it's generally recommended to use a high-mileage engine oil. High-mileage oils are specially formulated to help reduce oil consumption, minimize leaks and oil seepage, and reduce smoke and emissions in older engines. They also contain additives that help condition seals and protect worn engine parts. You might want to consider a 10W-40 or a 5W-30 high-mileage oil, depending on your climate and specific engine requirements. Always refer to your vehicle's manual or consult with a professional mechanic for the best advice tailored to your car's condition and needs.

For the 2016 Vitara automatic two-wheel drive Elite version, it's generally recommended to use 5W-30 engine oil. If you just changed the oil and noticed a one-liter increase in fuel consumption, it might be worth checking if the oil type and specifications are correct for your engine.

For a newlywed couple from 1997 considering their second car with a budget of 30-40, it's a tough choice between experiencing smart driving with a new electric car or going for a used Porsche 718 for around 30. Since you don't have kids yet, it might be the perfect time to enjoy a sports car. 😄