How Many Kilometers Can a Full Tank of Gas Run?

2 Answers
DeFaith
07/28/25 8:49pm
A full tank of gas can typically run over 500 kilometers. Generally, small cars have fuel tank capacities ranging from 35 to 45 liters, while mid-size cars have capacities around 55 to 75 liters. After filling up the tank, most vehicles can travel approximately 500 kilometers. The size of the fuel tank correlates with the car's engine displacement—larger fuel consumption means a bigger tank, and vice versa. An average sedan usually has a fuel tank capacity of about 50 liters. If the fuel consumption is relatively economical at 8 liters per 100 kilometers, the car can run over 600 kilometers. To achieve a range of 1,000 kilometers, the fuel consumption would need to be as low as 4 to 5 liters per 100 kilometers. Driving conditions also affect fuel efficiency—for example, heavy traffic and poor road conditions on national highways lead to slower speeds and higher fuel consumption, while highways allow for consistent speeds, optimizing the vehicle's performance.
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Christopher
08/12/25 1:33am
As a car enthusiast, I've always believed that how far a full tank of gas can take you depends on various small details. Take my 1.5L compact car for example, with a 55-liter fuel tank, the fuel consumption soars to 10L/100km in city traffic jams, barely making 500 kilometers per tank. But cruising at a steady 80km/h on the highway drops consumption to 6L/100km, easily surpassing 900 kilometers! Surprisingly, high-drag SUVs save more fuel on highways, while rapid acceleration, AC usage, or heavy loads drain the gauge faster. I advise friends to regularly check tire pressure—maintaining standard levels can save 5% fuel—and stick to scheduled engine oil changes to extend mileage. Hybrids like BYD's DM-i are even more impressive, often exceeding 1000 kilometers per tank, whereas regular gasoline cars average between 600 to 800 kilometers, heavily influenced by driving habits.
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