oil light

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Oil is used for lubricating the moving parts in a car engine. Every car has the quantity of oil it needs for adequate lubrication.
The oil light does not only show when their is low oil pressure, it also show on the dashboard when the car is put on ignition ( and it goes off after a few seconds, this is normal).    
Reasons why oil light stays standby on the dashboard.
  1. Low oil level in the engine; check the level of oil in the engine and if short of oil gauge it till it gets to the level stipulated by the manufacturer.
  2. Oil leakage; if the sump drain plug is not well fitted, the oil will leak out of the sump thereby reducing the oil pressure and in turn triggering the light to show.
  3. Blocked oil filter; when the oil filter is blocked it reduces the pressure at which oil should flow.
  4. Oil burning in the combustion chamber.
  5. Bad oil pump        
  6. Bad oil switch          

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