What is the fuel consumption of the Volkswagen Passat 1.8t?

2 Answers
JosephineRose
07/29/25 5:14am
The official combined fuel consumption of the Passat 1.8t as per the Ministry of Industry and Information Technology is: 6.8L/100km. The average actual fuel consumption reported by owners is around 8.5L/100km. Overall, the fuel consumption is quite good, but it should be noted that fuel consumption is influenced by various factors, so the actual usage should be taken as the standard. The main factors affecting fuel consumption include the following reasons: 1. Spark plug carbon deposits: If spark plugs accumulate more carbon deposits or become old, it will lead to a decrease in ignition energy and stability, resulting in increased fuel consumption. It is recommended that urban car users clean them every 20,000-30,000 kilometers and replace them periodically based on the spark plug material. 2. Intake system cleanliness: Its cleanliness directly affects the engine's working condition and thus fuel consumption. Special attention should be paid to the air filter and throttle valve. In general, it is recommended to replace the air filter every 10,000 kilometers in northern regions and every 15,000 kilometers in southern regions. If possible, the air filter can be cleaned with compressed air in the opposite direction every 5,000 kilometers. Experts recommend cleaning the throttle valve every 20,000-30,000 kilometers. The air flow meter also affects fuel consumption, as its accuracy is related to the engine's air-fuel ratio. If there is a problem, it will inevitably lead to increased fuel consumption. If the flow meter is found to be damaged, it must be replaced. 3. Fuel injector cleaning: Whether the fuel injector sprays fuel with good atomization directly affects the engine's combustion, leading to increased fuel consumption. Therefore, experts recommend cleaning the fuel injectors every 60,000 kilometers or so. 4. Tire pressure monitoring: Low tire pressure increases the contact area between the tire and the ground, which not only leads to increased fuel consumption but also causes damage to the tire sidewall. There is also a risk of tire blowout during high-speed driving. Therefore, it is important to maintain reasonable tire pressure regularly.
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MorganLynn
08/12/25 8:52am
I've driven a Volkswagen Passat 1.8T for ten years, with an average fuel consumption of 9 to 11 liters per 100 kilometers, varying greatly depending on road conditions. In city traffic jams, it can spike to over 12 liters, while on the highway at around 70 km/h, it drops to just over 7 liters. Although it's an older model, it's well-maintained with regular oil and filter changes, and replacing the spark plugs noticeably improved fuel efficiency. Driving habits are key—I've found that avoiding sudden acceleration and braking can save about 10% on fuel costs. Weather has a minor impact; fuel consumption is slightly higher in winter when using the heater, but summer AC usage makes little difference. I recommend checking traffic conditions on your phone before driving to avoid congestion, which can save a lot of money. The Passat 1.8T offers spacious comfort, and its fuel consumption is average for a B-segment car. Over time, fuel consumption increases slightly but remains reasonable.
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