Diesel and petrol engines work differently. Diesel engines use compression to ignite the air/fuel mixture, and have a much higher compression ratio than petrol engines, which use spark ignition. The conditions for ignition are not met when petrol is put into a diesel engine, and will stall.
because high higher compression ratios used in the diesel engines their thermal efficiency is higher than the petrol engines and therefore their running cost is lower.
The diesel will develop more torque or pulling power, will get better fuel mileage, and will last much longer.
The diesel engin does more of heavy work than the patrol engIn .
It is presently more marketable. Though it should be noted that in many countries most of the cost of fuels are taxes imposed by the governments.
Diesel is not entirely envionmentally friendly. It is just more friendly than petrol as it requires less refining and, due to advancements in technology, can burn cleaner than petrol in engines.
Petrol is more efficient as a fuel than ethanol, because the energy generated by burning a fuel is primarily released by formation of bonds between oxygen and carbon or hydrogen. One such bond already exists in an ethanol molecule, whereas in petrol few or no such bonds exist.
Petrol is not a single chemical compound so it doesn't have a sharp freezing point.
There is not a clear cutoff point between "high and Low sulfur diesel". Ultra low sulfur diesel ULSD is what is currently required for on road use. ULSD can contain no more than 15 ppm sulfur (15 micrograms sulfur per gram of fuel or 0.0015 wt.%). Low sulfur diesel would contain more sulfur than ULSD and high sulfur diesel more than low sulfur diesel.
(Although biofuel is Earth-friendly and easy to use . . . ) The most efficient fuel, in terms of the amount of energy per unit volume, is diesel, followed by jet fuel (kerosene). Biodiesel follows, then gasoline. Ethanol (as corn-based alcohol) is much farther down the list. Fuels rated by weight, however, are on a different efficiency scale. Liquid hydrogen contains far and away the most energy per kilogram. Then come jet fuel, gasoline, and ethanol. A table of fuel efficiencies can be found at the Related Link.
Overall each piece is bigger and heavier.
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.
The primary difference between a petrol car and diesel car is the consumption rate - diesel and petrol are refined from mineral oil using differing methods. The result is diesel engines having a lower fuel consumption rate than their petrol counterparts when installed in a vehicle of similar mass. CO2 emissions are also lower in a diesel engine than they are in a petrol engine.
In the United States diesel is not cheaper than petrol or gasoline, it is higher.
No, diesel is heavier.
Petrol is and bit more vicous and that diesel is a lot darker than petrol. Petrol burns quicker when set alight, however diesel burns more brightly!
The difference is that diesel is more oily than petrol, and is cheaper to produce.
because petrol is easer to burn than diesel
Depends on the car, if a car has petrol and diesel version than yes
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)
diesel is usually more expensive but diesel cars usually have more mpg than petrol cars
Produce more petrol than diesel. :P