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2.5 liter Petrol 8-1 diesel 25-1 compression

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Q: What is the typical compression in a diesel engine verses a petrol engine?
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Why compression ratio of petrol enine is 8 where as diesel engine is 22?

because a diesel engine ignites its fuel with pressure, and not with a spark like a petrol engine. that is why a petrol engine does not need as high a compression ratio as a diesel engine


Can you make a diesel engine which works on the basic principle of petrol engine or you can say it uses diesel as a fuel but works on the principle of petrol engine?

No, a diesel is a compression firing engine and a petrol is a spark firing engine. Diesel fuel will not burn in a petrol engine with spark plugs.


What are the defferences between dessel and petrol engine?

Petrol & Gas engines are spark ignited engines where as diesel engines are compression ignited engines. Petrol engines works with explosion of fuel air mixture due to spark from spark plug inside the cylinder. Diesel engines works with combustion of fuel air mixture due to compression, compressed mixture attains a very high temperature which exceeds the flash point of diesel and starts burning inside the cylinder and the hot gases after burning of fuel misture exerts force on piston which makes the diesel engines work. Diesel engines are highly efficient than petrol engines.


Why petrol engine is called spark ignition engine?

Because the fuel is ignited by a spark plug rather than by compression as is the case with a diesel.


Why is diesel is not used in petrol engines?

Because diesel is ignited of heat and high high compresion not a spark on lower compresion petrol engine. If you use diesel in a petrol you will end up with your engine knocking and pre-detonation followed by your engine blowing up pretty bad.

Related questions

Why compression ratio of petrol enine is 8 where as diesel engine is 22?

because a diesel engine ignites its fuel with pressure, and not with a spark like a petrol engine. that is why a petrol engine does not need as high a compression ratio as a diesel engine


Can you make a diesel engine which works on the basic principle of petrol engine or you can say it uses diesel as a fuel but works on the principle of petrol engine?

No, a diesel is a compression firing engine and a petrol is a spark firing engine. Diesel fuel will not burn in a petrol engine with spark plugs.


What will happen if petrol is used as a fuel in diesel engine?

Petrol or gasoline in a diesel will cause internal engine damage. if petrol is used in diesel engine it may cause explosive sound with burning ....bcz high compression ratio ......


Why you cannot convert a petrol engine into a diesel engine?

Diesel engines fire on compression rather than spark. This requires that a diesel engine be made much stronger than a petrol engine. All internal components are made to much stronger specifications. A petrol engine could not handle the higher compression and would self destruct.


Is there any vehicle which can run on both petrol and diesel?

A vehical that runs on petrol and diesel is impossible as they are both ignited in different ways. For exaple petrol is ignited by the spark plugs and a diesel is ignited by the shear force of the compression from the pistons. A petrol engine has a round 9:1 compression ratio and a diesel has about 20:1 but these veary from engine to engine I hope that hasn't lost you


Why is diesel engine more expensive than petrol engine?

Because of higher compression ratio.


What will happen if diesel filled in petrol engine?

the engine will not run because of three reasons. 1. Diesel uses more compression than the petrol engine does 2. the diesel engines fuel to air mixture is 1:1 and petrol isn't 3. diesel engines use straight compression or glow plugs instead of spark plugs


Why diesel engine car is costlier than petrol engine car?

Due to the increase in the compression ratio of a diesel which fires on compression rather than spark, the engine is built much stronger than a petrol engine. It therefore just costs more to manufacture.


What are the defferences between dessel and petrol engine?

Petrol & Gas engines are spark ignited engines where as diesel engines are compression ignited engines. Petrol engines works with explosion of fuel air mixture due to spark from spark plug inside the cylinder. Diesel engines works with combustion of fuel air mixture due to compression, compressed mixture attains a very high temperature which exceeds the flash point of diesel and starts burning inside the cylinder and the hot gases after burning of fuel misture exerts force on piston which makes the diesel engines work. Diesel engines are highly efficient than petrol engines.


What is difference between a diesel and petrol engine?

Basically diesel engines are much higher compression giving them more torque also the fuel is ignited by compression not a spark like in a gas engine


What happen petrol is used in diesel engine?

the combustion will take place without completion of compression.


What is defference between disel engine and petrol engine?

Diesel engines have a far higher compression which allows the diesel fuel to explode without the use of a spark plug.