Do New Cars or Old Cars Consume More Fuel?

1 Answers
McCameron
07/30/25 7:29am
Cars of the same brand, model, and age are comparable (or those with similar displacement). Fuel consumption is more directly related to engine displacement. Below are detailed explanations of the relevant content: New Cars: 1.1 Generally, small cars with around 2-liter displacement should consume approximately 9 liters in city driving and 7 liters on highways. Displacement City Driving Highway Driving 2L 9-10L 7-8L 3L 10-12L 9-10L 1.11 Automatic transmissions consume about 10% more fuel than manual transmissions. This means an extra liter of fuel per 100 kilometers. 1.12 Taller vehicles (such as SUVs, vans, etc.) consume more fuel due to their larger frontal area (increased wind resistance). For new car data, it is recommended to check the Canadian websites of various companies, such as Honda.ca, Ford.ca, BMW.ca, etc. This is also one of the key parameters to consider when purchasing a car. Old Cars: 2.15 or 6-year-old cars (e.g., 100,000-150,000 kilometers) may reasonably consume 5-10% more fuel per 100 kilometers compared to their new counterparts of the same brand. 2.210-year-old cars (e.g., 200,000 kilometers) may consume 10-15%, or even 20% more, which is also reasonable. 2.3 The increase in fuel consumption is mostly due to wear and tear on the engine and transmission system. Of course, abnormal wear can make fuel consumption unpredictable.
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