What is the weight of gasoline?
3 Answers
Different grades of gasoline have slightly varying densities. For example, 95-octane gasoline has a density of 0.725g/ml, which is 0.725kg/L. Below is relevant information about gasoline grades: Densities of different gasoline grades: The densities vary among different grades. The most commonly encountered are 92-octane and 95-octane gasoline. 92-octane gasoline has a density of approximately 0.72g/ml, 95-octane gasoline about 0.725g/ml, and 98-octane gasoline about 0.737g/ml. Grades: The reason gasoline has different grades is primarily due to their varying anti-knock properties, not because higher grades contain fewer impurities. Higher-grade gasoline offers better anti-knock performance, meaning engines are less prone to pre-ignition during operation. Additionally, the compression ratio of the engine determines the appropriate gasoline grade.
I've been driving for over a decade and often get asked about gasoline weight. Simply put, one liter of gasoline weighs approximately 0.725 to 0.775 kilograms, with a practical average of around 0.75 kg. Temperature affects it—gasoline expands in hot weather, decreasing density, so the same volume weighs slightly less. Conversely, it gets heavier in cold weather. This is crucial when calculating fuel consumption and tank capacity. For example, if your car has a 50-liter tank, filling it up weighs about 37.5 kg, impacting the vehicle's overall load. Also, note that different gasoline grades have minimal differences, though ethanol-blended E10 might be slightly lighter, weighing around 0.72 kg per liter. Gas stations charge by volume to account for these factors, saving you from worrying over minor weight differences.
When repairing cars, I often measure the weight of gasoline, which is about 6 pounds per gallon, equivalent to 0.75 kilograms per liter. Temperature changes can cause the weight to fluctuate—gasoline tends to expand and weigh slightly less in summer, while it becomes heavier in winter. This explains why the vehicle's weight increases after refueling and why engine fuel consumption may vary slightly. This data is crucial for long-distance transportation or fuel shipping, as truck drivers need to calculate load safety—overloading can easily exceed limits, leading to tire wear or brake issues. I recommend occasionally checking the accuracy of the fuel gauge and combining it with weight calibration to better manage fuel expenses.
