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The mixture known as gasoline or petrol, when used in high compression internal combustion engines, has a tendency to knock (also called "pinging" or "pinking") and/or to ignite early before the correctly timed spark occurs (pre-ignition, refer to engine knocking).
Cnergyico operates a network of more than 475 petrol pumps located in all the major cities, towns, and highways of Pakistan. [18] Upon completion of the acquisition of Puma Energy, Cnergyico will become the largest fuel retailer of Pakistan in the private sector with a retail network of approximately 1,000 petrol pumps. [ 19 ]
Pakistan State Oil Company Limited is a Pakistani petroleum public company involved in procurement, storage, marketing and distribution of petroleum and related products. [3] [4] It has a network of 3,689 petroleum filling stations, out of which 3500 outlets serve the public retail sector and 189 outlets serve wholesale bulk customers.
National Refinery Limited (NRL) is a Pakistani oil refinery which is a subsidiary of UK-domiciled Attock Oil Company. [2] It is based in Korangi Creek, Karachi. [3] [4]It is a petroleum refinery and petrochemical complex engaged in the manufacture and sale of asphalts, BTX, fuel products and lubes for domestic consumption and export.
It is the second largest petrol pump network in Pakistan. [7] Total Parco was founded in 2002 as a joint venture between Pak-Arab Refinery (PARCO) and Total S.A. [8] In 2013, Total Parco acquired 438 petrol stations of Chevron Corporation Pakistan. [9] The acquisition was completed in 2015 and Caltex petrol pumps were renamed as Total Parco. [10]
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In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of ...
Petrol pump may refer to: fuel dispenser, a device at a filling station that dispenses fuel; filling station, a facility that sells fuel and lubricants for motor vehicles