How many kilograms is 30 liters of gasoline equivalent to?
1 Answers
30 liters of gasoline equals 60 kilograms. The English name for gasoline is 'gasoline' or 'gas' (American English), also known as 'petrol' (British English). It is a volatile, flammable hydrocarbon mixture liquid derived from petroleum through distillation or cracking processes, primarily used as fuel for spark-ignited internal combustion engines. It mainly consists of organic compounds obtained from crude oil distillation and various additives. Although gasoline yield varies with crude oil composition, typically, a barrel of 42 US gallons (160 liters) of crude oil can produce about 19 US gallons (72 liters) of gasoline after refinery processing. The octane rating of gasoline measures the anti-knock properties of a specific gasoline mixture (which can cause knocking and reduce the efficiency of reciprocating engines). Depending on the octane rating, gasoline is produced in several grades. Other chemicals are often added to gasoline to improve chemical stability and other performance characteristics, control corrosiveness, and maintain fuel system cleanliness. Common gasoline grades available in the market today are 92 and 95. Generally, the higher the gasoline grade, the higher the octane rating and the better the anti-knock performance. 92-grade gasoline contains 92% isooctane and 8% n-heptane, while 95-grade gasoline contains 95% isooctane and 5% n-heptane. To determine which gasoline is suitable for a car, besides checking the appropriate gasoline grade in the car's manual, you can also find it on the fuel tank cap, which usually indicates the recommended grade. Typically, the gasoline grade can also be decided based on the engine's compression ratio. Cars with an engine compression ratio between 8.6-9.9 should use 92-grade gasoline, those between 10.0-11.5 should use 95-grade gasoline, and those with higher compression ratios should use 98-grade gasoline. However, with the use of some new technologies, the compression ratio alone cannot determine the appropriate gasoline grade. High compression ratio engines can be tuned to use lower-grade gasoline because, besides the compression ratio, other factors such as ignition timing, turbocharging technology, and Atkinson cycle technology also play a role.