A diesel engine can be more efficient, better for the environment and cheaper to run than its petrol-powered counterpart.
Diesel engines still need regular servicing though to keep it running at an ultimate level and to help make sure nothing goes wrong. Our technicians are fully qualified to service and repair diesel vehicles.
e-CAR – your one-stop diesel repair and servicing specialists!
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How are diesel and petrol engines different?
The main difference between diesel and petrol engines is that petrol engines use spark plugs to ignite the air-fuel mixture, while diesel engines rely solely on heavily compressed air. It is a fact that diesel engines produce more low-end torque and are therefore more powerful.
Difference between petrol and diesel engines
Apart from the type of fuel used, we also know that lighter vehicles such as motorcycles, scooters, and cars typically use petrol in their engines whereas diesel is typically used in much heavier machinery such as tractors, trucks, and buses. Thus, the types of fuel used also plays a major role in defining the major difference between petrol and diesel engines.
More differences between these types of engines are listed in the tabular column below:
| Diesel Engine |
|---|
| These engines work on the Diesel cycle |
| The fuel is mixed with air inside the cylinder |
| Ignition is achieved with the help of the hot, compressed air |
| High compression ratio |
| High power production |
| These engines work with fuels that have low volatilities |
| Generally used in heavy vehicles such as trucks and buses |
| Relatively low fuel consumption |
| High initial and maintenance costs |
| Petrol Engine |
|---|
| Works on the Otto cycle |
| Air and the fuel are mixed in a carburettor |
| Fuel is ignited with an electric spark |
| Relatively low compression ratio |
| Relatively low amounts of power are produced in a Petrol engine |
| Highly volatile fuels are used in these internal combustion engines |
| Used in light vehicles such as motorcycles and cars |
| High fuel consumption |
| Comparatively low initial cost and maintenance cost |
