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Many petrol cars have fuel injectors.
Many use standard petrol, some use high octane petrol.
An engine may have two, three, or four valves per cylinder.
An engine may have two, three, or four valves per cylinder.
depends on engine size 1.8 petrol engine takes 3.8 litres 2.0 petrol takes 4.2 litres
There is no difference. Petrol is just another name for gasoline. MPFI just means Multi-Point Fuel Injection. A petrol (gasoline) engine can be MPFI or it can have a carburetor. It can have many different ways to get gasoline (petrol) to the cylinders.
millions of parts
Your question assumes something that is not true. Many auto manufactures do use turbo chargers on petrol engines.
including the engine parts 967 not including the engine 350
Depends on size of engine and speed you drive.
Depends on engine and how carefully you drive.