How Many Kilograms is 1 Liter of Gasoline Engine Oil?

[BryceFitz]

Approximately 1.7 jin (Chinese pounds), as different types of engine oil may vary in weight. Below is relevant information about engine oil: 1. Introduction: Engine oil, also known as engine lubricant (English name: Engine-oil), has a density of about 0.91×10³ (kg/m³). It serves multiple functions such as lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, and shock absorption. 2. Additional Information: Often referred to as the 'blood' of a car. Engine oil consists of two main components: base oil and additives. The base oil is the primary constituent of lubricants, determining their fundamental properties, while additives compensate for and enhance the deficiencies of the base oil, providing additional performance characteristics, making them a crucial part of lubricants.

[VonEmmanuel]

I've calculated this for my friend many times. You can't directly equate 1 liter to 1 kilogram for gasoline and engine oil. Gasoline has a lower density, about 0.73kg/L, so 1 liter of gasoline is approximately 1.46 pounds. Engine oil has a higher density, generally around 0.91kg/L, meaning 1 liter of engine oil equals about 1.82 pounds. When we do car maintenance at the repair shop, changing 4L of engine oil is roughly a little over 7 pounds. However, it's important to note that different brands of engine oil have varying viscosities. For example, 0W-20 oil used in winter is slightly thinner than 5W-40, so there might be minor differences in actual weight measurements.

[StDaniela]

I'm the kind of person who likes to use a calculator to confirm such matters. Through density conversion, with gasoline density at 0.725kg/L, 1 liter × 0.725 × 2 = 1.45 jin (the 2 is the conversion factor from kilograms to jin); for engine oil, taking a density of 0.9kg/L, 1 liter is approximately 1.8 jin. The density difference between the gasoline grades 92# and 95# seen at gas stations is within 0.01, which is why the actual refueling is billed by volume. The commonly purchased 5L pack of engine oil has an actual weight of about 9 jin, and the heft you feel when lifting it is proof of that.

[MacNevaeh]

Anyone who has worked in auto repair knows there's a trick to this. Gasoline is light and floaty—if you fill a plastic water bottle with 1 liter of gasoline, it definitely won't weigh 1.5 pounds. In contrast, that golden liquid used during oil changes is noticeably denser, with 1 liter weighing almost 2 pounds. Gas stations measure underground tank inventory in cubic meters, and they have an internal conversion chart. When we replace the three filters ourselves, just remember that a small 1L oil bottle weighs about 1.8 pounds—buying four bottles gives you just over 7 pounds in total.

[SanAaron]

It depends on the viscosity of the oil. Gasoline has a light molecular structure, similar to water but over 10% lighter, so one liter of gasoline weighs only about 1.4-1.5 jin. Engine oil is specially formulated with thickeners, making one liter weigh around 1.8 jin. Last time at the 4S shop, I saw a technician changing the oil. He lifted a 1L can of engine oil, weighed it in his hand, and said, 'This can is a solid one jin and eight liang.' When a gas station refuels a motorcycle, the owner uses a 1.5-liter oil canister for gasoline, and the actual weight is just over 2 jin.

[DeMiguel]

Physics teachers taught us that mass = density × volume. Gasoline has a density of 0.72-0.74g/ml, converting to approximately 1.44-1.48 pounds per liter; engine oil is denser, with a density of 0.88-0.92g/ml making one liter weigh 1.76-1.84 pounds. When driving to refuel, 92# gasoline is slightly lighter than 95#, but the difference is less than 0.01 pounds. Truck drivers say a 30-ton gasoline tank can actually hold over 40,000 liters, and if filled with engine oil, it could carry an extra 2,000 pounds. Simply remember: gasoline is about 1.5 pounds per liter, and engine oil is nearly 2 pounds per liter.