Diesel Versus Spark Engine Ignition
more efficient than gasoline engines of the same
power, resulting in much lower fuel usage. For an
efficient turbo diesel, the average is 40% more miles
per gallon. The higher compression ratio with
diesel engines help to raise efficiency, but diesel
fuel also contains around 15% more energy per unit
volume than gas.
Diesel engines that are naturally aspirated are far
more massive than gasoline engines of the same power
for two reasons. First, it takes a larger capacity
diesel engine than a gas engine to produce the same
amount of power. Essentially, this is because the
diesel can't operate as quickly. The rev limit is
slower, because getting the correct fuel to air ratio
into a diesel engine fast enough is more difficult
than a gas engine. The second reason is due to the
fact that a diesel engine needs to be stronger to
withstand the higher combustion pressure needed for
Diesel engines also produce very little carbon
monoxide as they burn the fuel in excess air except
at full loading capacity, where a full quantity of
fuel is injected per cycle. They can however,
produce a black soot from the exhaust, which consists
of unburned carbon compounds.
Often times, this is caused by worn injectors, which
don't atomize the fuel sufficiently enough, or a
faulty management system that allows more fuel to be
injected that can then be burned with the available
For commercial use that requires towing, diesel
engines tend to have more desirable torque. Diesel
engines tend to have their torque peak quite low
in their speed range which provides smoother control
over heavy loads when starting from rest, crucially
allowing the engine to be given higher loads at low
speeds than a gas engine.
The lack of an electrical ignition system in diesel
engines improves the reliability. The high durability
of diesel engines is also due to the overbuilt
nature as well as the combustion cycle, which will
create a less violent change in pressure when
compared to a gasoline type spark ignition engine.
Diesel fuel is also a better lubricant than gasoline,
so it is less harmful to the oil film on piston
rings and cylinder bores - making it routine for
diesel engines to go 250,000 miles or more without
having to be rebuilt.
For several reasons, diesel proves to be better than
spark engine ignition. Diesel engines last a lot
longer, they offer more torque, and they are also
more reliable. They are also more expensive as well,
although you get what you pay for. If you have
never owned a diesel vehicle, you owe it to yourself
to see everything they offer you - and you'll find
yourself a very satisfied customer.
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Diesel Passenger Vehicles
Diesel Fuel Quality
The designs of diesel engines striving to increase performance have made a lot of advancements in engine fuel delivery to the combustion chamber. The diesel engines of today are much quieter, smoother, and also more powerful. The quality...
As you probably already know, diesel engines get better fuel economy than gas, simply because they don't need to burn as much fuel as gasoline engines to get the same amount of power. Diesel engines are built heavier than gas engines, to...
Diesel Versus Spark Engine Ignition
As you may already be aware of, diesel engines are more efficient than gasoline engines of the same power, resulting in much lower fuel usage. For an efficient turbo diesel, the average is 40% more miles per gallon. The higher compression...
Gas Trucks Versus Diesel Trucks
If you plan to use your truck like a car, desiring quick, quiet acceleration and rarely ever haul a heavy load and don't plan to it for a long time, you may want a gasoline engine. Gas engines run smoother, fuel is easier to find, and gas...
Gas Versus Diesel
Cost Due to the high compression ratios and resulting high cylinder pressure in diesel engines, they must be built to withstand a lot more punishment than gas engines. The parts that are spruced up include a thicker block and cylinder...
General Information On Diesel Engines
Diesel engines offer the lowest specific fuel usage of any other large internal combustion engine. The fact remains, two-stroke diesels with high pressure forced induction, particularly turbo charging, make up a large percentage of the...
How Diesel Engines Work
When gas is compressed, the temperature of it will rise, with diesel engines using this very property to ignite the fuel. Air is then drawn into the cylinder and compressed by the rising piston at a much high compression ratio than gas...
Industrial Diesel Engines
Industrial diesel engines are any engines that are used for industrial purposes that run on diesel. Industrial diesel engines are used to power a major portion of industrial machinery, from motorbikes to bulldozers, generators, and even...
Why People Use Diesel
With diesel engines, the compression ratio is higher and there is more power. From a technical point, the compression ratio of an engine is the comparison of the total volume of the cylinder at the bottom of the piston's stroke divided by...
Why You Should Choose Diesel
The major distinction between diesel and gas lies in the type of ignition. While gas engines operate on spark ignition, diesel engines employ compression ignition for igniting the fuel. With compression, the air is drawn into the engine...
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