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Diesel fuel requires a huge amount of compression to make it ignite. Because gasoline is more flammable, and gasoline engines incorporate spark plugs to light the fuel, they don't need to compress the gasoline as much. The force of the compression requires that diesel engines have thicker and stronger cylinder walls, which leads them to be heavier. Also, in an effort to make the most efficient gasoline powered car, manufacturers have produced engines from lighter metals (aluminum, magnesium), which is not possible for diesel engines.
Also,The diesel engine still uses above all heavy fuels such as fuel oil, which are a bit more expensive than gasoline
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Is petrol heavier than diesel?
No, diesel is heavier.
Is the petrol engine is costly thab diesel engine?
No, diesel engines cost more to build than petrol engines. They are built much heavier.
Why diesel engine is costlier than petrol engine?
Overall each piece is bigger and heavier.
What is the weight difference between a diesel engine and a gas engine?
A diesel engine is heavier than a petrol engine because some parts in a diesel engine are made from cast iron such as cylinder sleeves etc. The weight difference is usually between 10-20kgs.
Which is more efficient a petrol engine or a diesel engine?
It will depend upon the conditions. Under normal operating conditions a diesel engine is more efficient than a petrol engine.
Why diesel gives more milage than petrol and petrol car costly than diesel?
Diesel engines are more efficient and do use less fuel, but they do not cost less than a petrol engine, they cost more. Diesel fuel also costs more. A diesel engine will however last longer.
Is the volumemetric efficiency of diesel engine more than a petrol engine?
Yes
What is the difference between petrol and diesel engines?
diesel engines doesn't use spark plug but uses heater plug.petrol engines produces more torque than petrol engines but petrol engines produces more acceleration than diesel engines.petrol engine is faster to be heated than diesel engine.
Why is petrol engine RPM is greater than diesel engine?
for same power diesel engine produces more torque @ less rpm whereas petrol engine produces less torque @more rpm this difference is due to different combustion processes of diesel and petrol
What is the adventages and disadvantages of petrol engion?
first of all its engine. ADVANTAGES - petrol is cheaper than diesel so cheaper to run. petrol cars generally cost less than diesel (a few 1000). petrol engines are usually faster than diesel off the line and have a higher top speed than a diesel car with the same sized engine. DISADVANTAGES - petrol is less economical than diesel and also diesel cars are much better for over taking than petrol as it has more torque (pulling power)
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.
What is the difference in bhp between petrol and diesel engines?
Both our internal combustion engines but the main difference is that a petrol engine uses spark plugs to ignite the fuel but a diesel engine has no spark plugs but instead uses compression to ignite the fuel. A diesel engine is also built much stronger than a gasoline/petrol engine. Diesel engines get better fuel mileage, last longer, and have much more torque or pulling power than a petrol engine. The only disadvantage to a diesel is the fact that it is more costly to build than a gasoline engine.
