Diesel-VS-Gasoline-Vehicles Articles
Gas Tractor Versus Diesel Tractor
(category: Diesel-VS-Gasoline-Vehicles, Word count: 305)
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There are many different reasons as to why a diesel
compact tractor is superior to a gasoline garden
tractor.
First of all, the diesel engine doesn't have the
parts that normally wear out or give problems. There
are no spark plugs, rotors, points, or distributor
caps like the garden tractor. There is no carburetor
either, that will gum up and be hard to start after
being stored for a long period of time. Diesel engines
can be stored for long periods of time and still start
right up.
Secondly, diesel engines in most tractors are water
cooled. This will allow the engine to run at a more
consistent and cooler temperature, which will extend
the life of the engine. The typical properly
maintained diesel engine can run thousands of hours
without breaking a sweat - and without having to be
rebuilt.
Diesel engines will also make more power. Even though
gasoline tractors may be a little quicker to start
with, they can't begin to match the power and raw
torque that diesel engines offer.
Another reason why diesel tractors are better than
gas is the available attachments. Most gasoline
tractors are equipped with a belly mower and don't
normally have a three point hitch. This will severely
limit the type of implements that you can use and
also limit the tractors expandability.
Most blades and scoop implements won't work with a
gasoline tractor. The drive train will also limit
the type of implement you can use with a garden
tractor. The typical gasoline garden tractor is
belt driven, while a belt drive won't pull as much
load as a diesel powered tractor. You would probably
not be able to use a box blade or tiller either
with the average gasoline powered tractor.
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.
Diesel Engines Forgotten Treasures
(category: Diesel-VS-Gasoline-Vehicles, Word count: 418)
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There are very few engine configurations that promise
increased fuel economy and power. There are few
engines that offer this in addition to reliability.
Today, those across the ocean are enjoying the
fruits of diesel technology revolution.
Diesels have experienced a great history here in the
United States. In 1980, General Motors modified
their 350ci gas V8 to run on diesel fuel. The result
however, wasn't that god. These engines offered
better fuel economy but little else. They were
very slow, and not very reliable.
Mercedes Benz on the other hand, had better luck
in the 1980s with an array of vehicles available
with diesel engines. These great vehicles offered
amazing durability although they were rough, noisy,
and smoked quite a bit. Volkswagon offered diesel
as well, although they had a habit for spewing
blue smoke from the tail pipe.
Throughout the 90s, Benz and Volkwagon offered
diesel vehicles in the United States, with each
generation becoming cleaner, smoother, and more
powerful than the last. Overall, they were a
tough sell as they still lacked the horsepower
that many were seeking.
Today, Mercedes, BMW, Jaguar, Volkswagon, Ford,
and many other manufacturers are offering diesels
to many markets throughout the world. To put it
simple, forget everything you know or think you
know about diesel engines in the United States.
These newer engines benefit from hundreds of
technical innovations. There are several diesels
in Europe that offer better acceleration than
their gasoline counter parts. BMW's 120d has
163bhp, goes 0 - 60 in under 8 seconds, and
achieves 49.6 miles per gallon.
Benz offers the C320 CDI SE that has 224bhp, and
over 360 lb foot of torque. This car gets just
under 48 mpg on the highway, with an acceleration
of 0 - 60 in under 7 seconds. Throughout North
America, you won't find a gasoline engine that
offers this unique blend of fuel economy and
excellent performance.
The reason why diesels haven't caught on in
North America comes down to one word - sulfur. We
have too much sulfur in the diesel here in the
United States. This cheap grade of diesel fuel
will run havoc on the more sophisticated diesels
offered overseas and cause an increase in
emissions.
There is hope however, as refiners will soon be
producing what is known as ultra low sulfur
diesel fuel. This will help to reduce the sulfur
content from 500ppm to 15ppm.
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.
Diesel Versus Spark Engine Ignition
(category: Diesel-VS-Gasoline-Vehicles, Word count: 482)
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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 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
ignition.
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
air.
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.
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.
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 Or Not
(category: Diesel-VS-Gasoline-Vehicles, Word count: 464)
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Diesel is often looked at as being smelly, noisy, and
many think the only place for it is in a tractor. The
truth to diesel vehicles is that they are slow, noisy,
smelly, although they are cheaper to run than gas.
Diesel engines aren't as powerful as gas engines, as
gas engines produce more horsepower than that of a
diesel engine. Diesel vehicles however, offer more
torque than gas. Therefore, it is a very thin line as
to which one is better.
When it comes to power, diesel is the more expensive
of the two. Diesel powered vehicles are normally more
expensive to buy than gas, and the parts are a lot
more expensive than gas vehicles. The diesel however,
is more reliable due to it being less complicated
internally and heavier to build, therefore it normally
lasts longer than gas engines.
Economy is always a factor as well, as will fuel
prices being what they are. Now days, it costs a
small fortune to fill up a gasoline vehicle, especially
the bigger engines. When it comes to fuel, diesel
is generally less expensive. You can fill up a diesel
vehicle for less of a price, and the fuel will
normally go longer than gas will.
Appearance is also important. Diesel is generally
loud, with the exhaust emitting black smoke when the
vehicle is throttled. You can normally tell when a
diesel pulls off by the black smoke it leaves behind.
Keep in mind, this isn't a problem with the engine,
just means that the fuel is dirtier.
Tuning is also important. Gas engines are more
tunable than diesel, as you can get better power
increases from gas than you can with diesel. The
major thing diesel owners tend to go for is turbo,
as it is one sure way to match gasoline in terms
of power.
A turbo charged diesel can and will match a standard
gasoline engine for power, if not slightly better it
a bit. This is why most diesel cars come turbo
charged, as its a way to keep up with the modern
diesel engines of today.
When it comes to making the choice, you really have
to choose what is best for you and your needs. If
you want power with plenty of tuning options, then
gasoline engines are what you want. On the other
hand, if you want power and torque, then a diesel
vehicle is what you want.
The choices are entirely up to you, as there are
certainly plenty to choose from. Always check out
the vehicle you are interested in, and find out
if it will match your needs. Before you know it,
you'll have a diesel or gas vehicle that will perform
well beyond your expectations.
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.
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