Mechanical Engineering - Automobile Engineering - Discussion

The octane number of compressed natural gas (CNG) is typically between 120-130.

CNG is a fuel composed primarily of methane (CH4), which is a natural gas that has been compressed to high pressure to reduce its volume and make it practical for use as a vehicle fuel.

The octane number of a fuel is a measure of its resistance to premature ignition, which is important for engines that use the spark ignition process (like gasoline engines). CNG has a very high octane number, usually between 120-130, which allows CNG-powered engines to operate at higher compression ratios compared to gasoline engines. The high octane rating of CNG enables efficient and clean combustion in engines designed to take advantage of its properties.

This high octane number is one of the key advantages of CNG as an alternative vehicle fuel, as it allows engine designs that can extract more power and efficiency from the fuel compared to traditional gasoline or diesel engines.

Natural Gas is a smart, low-emission alternative to gasoline and diesel" and it delivers similar horsepower ratings. Premium gasoline is 91 octane, while natural gas has an octane rating of approximately 130.

This higher octane allows for the increased engine compression and combustion efficiency of CNG.

Here is Asking CNG Fuel. We all know that this is pollution Free so that this CNG have more than octane rating.

How it is possible? if anyone knows it kindly explains in detail.

How it is possible that octane rating is more than 130?

No, the octane rating is 85-95.

How it is possible that octane rating is more than 100?