Diesel-Vs-Gasoline-Vehicles Articles
Diesel Engines And Well Known Gas
(category: Diesel-VS-Gasoline-Vehicles, Word count: 316)
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In passenger cars, the diesel engine has never really
caught on. During the middle to late 70s, diesel
engines in passenger cars did notice a surge in
sales due to the OPEC oil embargo, although that is
the only real significant penetration that diesel
engines have made in the market.
Although diesel engines are more efficient, there
are eight historical problems that may have held
them back.
1. Due to the higher compression ratios,
diesel engines tend be heavier than the equivalent
gasoline engine.
2. Diesel vehicles and diesel engines tend to
be more expensive than gas.
3. Because of their weight and compression
ratio, diesel engines tend to have lower RPM ranges
than gas engines. This gives diesel engines more
torque rather than higher horsepower, and this tends
to make diesel vehicles slower in terms of acceleration.
4. Diesel engines have to be fuel injected,
and in the past fuel injection was very expensive
and less reliable.
5. Diesel engines tend to produce more
smoke and smell very funny when compared to gasoline
engines.
6. They are harder to start in cold weather
and if they contain glow plugs, the diesel engines
may require you to wait before you start the
engine so that the glow plugs can heat up.
7. Diesel engines are much noisier than
gas engines and tend to vibrate quite a bit.
8. Diesel fuel is less available than gas.
Although one or two of these disadvantages would be
acceptable, a group of them is a big turn away for
many people.
Even though the list above are reasons in the past
as to why diesel never really took off, you can
expect these reasons to get corrected and improved
in the future, meaning that you will see more and
more diesel vehicles on the road.
How Diesel Engines Work
(category: Diesel-VS-Gasoline-Vehicles, Word count: 297)
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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 engines, up to 25:1, with
the air temperature reaching 700 - 900 degrees C.
At the top of the piston stroke, the diesel fuel is
injected into the combustion chamber at high pressure,
then through an atomizing nozzle, it mixes with the
hot high pressured air. The resulting mixture will
ignite and burn very rapidly. This combustion will
cause the gas in the chamber to heat up rapidly,
which increases the pressure and forces the piston
downwards.
The connecting rod will transmit this motion to the
crankshaft. The scavenging of the engine is either
done by ports or valves. To get the most out of
a diesel engine, use of a turbocharger to compress
the intake of air is vital. You can also use an
aftercooler or intercooler to cool the intake air
after compression by the turbocharger to further
increase your efficiency.
An important part of older diesel engines was the
govenor, which limited the speed of the engine by
controlling the rate of fuel that was delivered.
Unlike gas engines, the air that comes in is not
throttled, so the engine would overspeed if this
wasn't done. Older style injection systems were
driven by a gear system that came from the engine.
The diesel engine is truly an advancement to vehicles
as we know it. As technology gets better, you
can expect the diesel engine to get better as well,
possibly even proving just how much better it is
to the gasoline engine.
Gas Versus Diesel
(category: Diesel-VS-Gasoline-Vehicles, Word count: 484)
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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 heads,
pistons, crankshaft, and valves, which can be
very costly indeed.
When it comes to the price, gas wins this one by
far. Diesel costs a lot more to own than gas,
which is one of the main reasons why people tend
to choose gas over diesel.
Fuel cost
Diesel fuel is easier to refine, taking less
time to get from raw petroleum to final product
from gas, giving it a lower price than that of
gas. On the other hand, within the United States,
diesel is priced the same or just a bit below
regular unleaded gas.
Noise and vibration
Despite many improvements in noise isolation and
engine noise technology in trucks over the last 10
years, diesels are still much louder and shake
more than gasoline powered vehicles. At idle, the
clatter and shake of diesel vehicles are clearly
noticeable, while it can be hard to tell if the
gas engine is even running.
Cold weather
If you've tried to start a diesel engine on a
cold day, you know that gas is by far easier to
start. Diesels don't have spark plugs like gas engines
do, as the fuel is ignited once it's injected into
the cylinder that is already under pressure.
When it gets cold, the air isn't hot enough to
ignite the diesel fuel.
Maintenance
Maintenance on a diesel vehicle is more expensive,
thanks to many things including the larger volume
of oil in the engine and the fact that fuel filters
and water separators must be serviced more often
than gas vehicles. Gasoline engines have a bigger
advantage due to extended service periods on spark
plugs, engine oil, and even antifreeze.
Making that final choice between gas and diesel comes
down to what you'll do with your vehicle and where
you live. If you use your vehicle for quick, fast
acceleration and rarely ever haul heavy loads, and
don't plan to keep your vehicle past 100,000 miles,
you may want to consider buying a gasoline vehicle.
Gas runs smoother, fuel is easier to find, and
they are easier to start in cold weather. On the
other hand, if you plan to tow, value good fuel
economy and plan on racking up a lot of miles, then
you'll want to buy a diesel.
Price is also an important consideration, as diesel
vehicles can be a bit more expensive than gas. If
you aren't worried about price, then diesel may be
your best bet. For trucks, diesel is by far the
superior choice for those who like to haul heavy
loads on a frequent basis.
Why You Should Choose Diesel
(category: Diesel-VS-Gasoline-Vehicles, Word count: 300)
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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 and subjected to high
compression that heats it up. The result is a very
high temperature in the engine, much high than that
of gas engines.
In diesel engines, air and fuel are both infused into
the engine at different stages, as opposed to gas
where a mixture of air and gas are introduced. The
fuel is injected into the diesel using an injector
where in a gas engine, a carburetor is used for this
very purpose.
With gas engines, fuel and air are sent into the
engine at the same time, then compressed. The air
and fuel mixture will limit fuel compression, and
thereby hence the overall efficiency. Diesel engines
only compress air, and the resulting ratio can be
much higher.
Advantages
Diesel engines are much more efficient and
preferable as compared to gas engines due to the
following reasons:
1. Diesel engines have overcome the several
disadvantages of earlier models that featured higher
noise and maintenance costs. Now, they are quiet
and require less regular maintenance when compared
with gas engines of a similar size.
2. Diesel engines are more rugged and reliable.
3. There is no sparking at all as the fuel
ignites. The absence of spark plubs or spark
wires also helps to lower maintenance cost.
4. The fuel cost produced is 30 - 50 percent
lower than gas engine fuel prices.
5. Gas burns hotter than diesel, and
therefore they have a shorter life span when they
are compared with diesel engines.
General Information On Diesel Engines
(category: Diesel-VS-Gasoline-Vehicles, Word count: 423)
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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 largest diesel engines.
Throughout North America, diesel engines are generally
used in larger trucks, where the low stress, high
efficiency cycle will lead to a much longer engine
life and lower costs to operate. These advantages
also help to make the diesel engine ideal for use in
the heavy haul industry.
Cars however, continue to use gasoline, primarily
due to the consumer desire for a wider range of
RPM. In Europe, the use of diesel engines with cars
is far more common.
Even though diesel engines are more efficient when
throttled down, they aren't suitable for most types
of aircraft. The higher compression ratios of the
diesel cycle demand a much stronger block, head,
and almost all moving parts in general. These
stronger parts add a lot of weight, or a lot of
expense, especially if lighter alloys are being used.
The Otto cycle engines are much cheaper to build for
these reasons, although they have long been overtaken
by the turbine engines. For the same displacement
of the engine, Otto cycles will produce more actual
power than a Diesel cycle can, because the fuel
will burn at a much faster rate, allowing more power
strokes per minute than a standard diesel can offer.
What this means, is that less fuel has to be carried.
Additionally, commercial aircraft is normally run
at preset limits, so that Otto cycle engines used
in aircraft don't suffer anywhere near the efficiency
penalties that land vehicles do. Heavy equipment,
such as those used in mining and construction,
almost always uses diesel engines.
Diesel engines are also used with submarines. In
these types of submarines, the diesel engine is run
when the submarine is on the surface, which charges
the batteries that power the submarine once it is
submerged.
All across the world, diesel engines serve many
different purposes. They are used with almost all
types of heavy machinery, and other vehicles. Gas
isn't the way to go with heavy machinery, as the
engines simply can't withstand the beating.
Diesel has been popular for many years with machinery
and submarines, simply because the engines can
last for years and years. Although they won't offer
as much speed as gasoline, the torque and power is
still there.
Hydrogen Boosted Gas Engines
(category: Diesel-VS-Gasoline-Vehicles, Word count: 486)
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With the ever increasing cost of gasoline prices,
auto makers are having to work overtime to cost
effictively improve the fuel economy, while still
meeting the strict emission requirements of today
with gasoline engines.
One ideal and promising way to boost the fuel
economy of gas engines is to add hydrogen to the
fuel/air mixture in the engine. Since hydrogen
isn't available at the local gas station, selling
a hydrogen boosted gas engine wasn't on the list
of engines - until now.
Lack of emission
A major cost and environmental advantage to hydrogen
boosted gas engines are low amounts of NOx emission
gas, which will completely eliminate the need for
external NOx emissions control. Currently, NOx
emissions control is a major cost problem for diesel
engines which use expensive traps to meet the
emission standards. Diesel engines particulate
emissions that must be collected by a filter that
should be changed periodically.
Hydrogen boosted engines on the other hand require
neither NOx or particulate control and require only
a low cost oxidation catalyst to control very small
amounts of exhaust which is formed mostly during
the engine starting up and warming up. Additional
cuts in emissions control requirements stem from
the engine's ability to use only the clean hydrogen
enriched charge during the cold start phase when
90% of emissions are generated in the emission test.
Cost
The hydrogen boost system is effectively a bolt
on technology that can be added to an existing
vehicle's engine compartment. According to those
developing the system, the cost of the system is
less than half of the added cost for diesel.
The future
Prototype hydrogen boosted engines are now be
installed in test SUV vehicles that have
sufficient space for the reformer and it's related
system. The start of long term road testing
for performance, reliability, and durability
information is planned for later on in the year
before the system goes further into development.
Four cylinder gasoline engines will likely be the
prime candidates for the technology as high gas
prices continue to generate competition among the
higher fuel economy models that seek MPG
leadership.
With gas prices getting higher and higher, hydrogen
boosted gas engines offer you the chance to get
more miles per gallon and not have to worry about
burning up all of your fuel. Instead of having to
go out and buy a diesel to conserve fuel, hydrogen
boosted units will help you preserve gas.
Even though they aren't available to buy right now,
they will be very soon. Many manufacturers are
looking into them, as they offer gasoline engines
something like never before. If you own a gas
powered vehicle and have thought of giving it up
to go diesel, you might want to think again - as
hydrogen boost units may change the world of gas
engines forever.
Gas Saving Tips
(category: Diesel-VS-Gasoline-Vehicles, Word count: 312)
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Are you tired of the continuing rise in gasoline price?
If you are, you're not alone. In this article, you'll
find a few excellent tips designed to help you save
a bit of your hard earned money.
First, its always best to purchase your gas either
first thing in the morning or late at night. The
reason for this is because gas is denser at a cold
temperature, so you'll basically be getting more for
your money.
Secondly, check your local gas prices to find the
best price available. You can check your local gas
prices online as well, which will prevent you from
wasting gas while driving around to look for the
best price.
By keeping your car well maintained, you can help
improve fuel consumption. By simply tuning your car,
you can decrease your fuel consumption by up to 20
percent. Also, you should keep your tires properly
inflated and aligned. Tires that are under inflated
will cause fuel consumption to increase by 6 percent.
You should also make sure that you change your oil
and air filters on a regular basis as well.
Other tips to keep in mind are to drive by staying
in the posted speed limits, as the faster you drive
you will use more fuel. Whenever possible you should
use overdrive, as this will help fuel and also
improve the wear on your engine. You can also
combine your errands by making a list of things that
you have to do, as the more you cold start your
engine, the more fuel you'll be using.
By taking the time to do these tips, you'll be
amazed at just how much fuel you can save. Gas
prices are becoming ridiculous these days, which
is why you want to do your part to converse little
drop that you can.
Diesel Vehicles
(category: Diesel-VS-Gasoline-Vehicles, Word count: 298)
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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 help sustain
the added stress of the much higher compression
ratios.
Diesel engines don't have an ignition system either,
so you'll never have to tune them up. The exhaust
systems will last longer as well, as the exhaust
on a diesel isn't as corrosive as an exhaust on a
gasoline engine.
With diesel engines, it isn't unusual to see them
with 400,000 or even 500,000 miles. There are some
out there that have even went beyond 600,000 miles!
When it comes to maintenance, 3,000 mile oil changes
are a must. Diesel fuel isn't as refined as gas,
so the oil will get dirtier faster. You should
also replace the air and fuel filters at least
once a year.
If you live in a colder climate, you'll need to
switch to a winter blend of fuel to prevent fuel
gelling. There are several additives that you can
put in the fuel as well, to help prevent your fuel
from getting gel.
It's also recommended that you replace the glow
plugs every two years. If the temperature drops
below 10 degrees, a block heater is something you
should have. This will ensure starting in cold
weather, especially with the heavy grade of oil
that a diesel engine requires.
If you take care of your diesel vehicle, you can
count on it to be around for years to come. Unlike
gas vehicles, diesel engines are built for the
long haul, and will last you for miles and miles
if you take care of them.
Gasoline Credit Cards
(category: Diesel-VS-Gasoline-Vehicles, Word count: 478)
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With gasoline getting more and more expensive, you've
probably found yourself wondering what you can do.
Even with the rising costs of gas and fuel, you
still need it to go places. No matter how you look
at it, you are at the mercy of these prices.
If you own two credit cards, changes are that you
will use one of them to pay for your gas. Gas credit
cards are now starting to shine. There are many
individuals who are planning to apply for a gas
card. Most cards are either issued by a leading
credit card company or by a major retailing gas
station.
Along with that, there are some of the gas credit
cards that give you a great deal like having
discounts on gases such as unleaded, premium, and
others. Gas credit cards also give you an
assurance to have more approved gas bonus.
If the credit card is approved, the owner of the
card will not only save money on gas, but he'll
also get an extra allowance for car equipment and
accessories. Gas cards can also help you save
a bundle on repairs as well.
Keep in mind that there are some things to consider
when you apply for a gas card. When you plan to
apply for a card, the conditions should always be
known. The benefits of the gas credit cards
available should also be studied and researched
in order to compare rates, features, and
benefits.
As the popularity of gas credit cards continue to
increase, so will the offers. Gas cards also
offer a positive effect for gasoline retailers as
well. The customer will also earn additional
incentives as well. If you plan to stick with
one brand of gas, this card can generate some of
the best rewards.
When looking for the best type of gasoline credit
card, the most important thing to do is review
the terms and conditions. The present status
of the card should also be reviewed in order to
avoid a bad credit record.
There are also several gas credit cards that will
give you extra rewards and point systems. What
this means, is that the card holder can earn
cash back on certain purchases. The more points
you get, the bigger product you can receive.
The ideal purpose of applying for gas credit cards
is to help eliminate the gas expenses. The
credit card should help you to have a deal with
gas expenses. Low interest premium cards can be
the best if you can maintain the proper balance.
The best thing about gasoline credit cards is the
fact that you don't have to pay for them now and
you can just pay later. Just don't forget to pay
the bill, as you could end up getting a bad credit
rating.
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