Gas Tractor Versus Diesel Tractor
There are many different reasons as to why a diesel
compact tractor is superior to a gasoline garden
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
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
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.
Diesel Passenger Vehicles
Both diesel cars and light trucks are receiving a
lot of attention in the United States as a near
term strategy to achieve fuel economy and climate
The renewed interest in diesel as of late stems
from its potential to improve passenger vehicle
fuel economy. The best diesel passenger vehicles
of today are more efficient on fuel than their
gas counterparts, helping to reduce carbon
emissions by 30 percent or more.
There are some auto makers that are talking about
re-introducing diesel into light duty markets as
a solution for reducing global warming pollution
from both cars and trucks. Another important
reason is that the higher efficiency of diesels
will provide a quick fix for manufacturers who
are struggling to meet federal fuel economy
standards for light trucks.
Even if the efficiency benefits of diesel do
yield real world improvements on the economy, the
potential climate change benefits are modest.
Even though diesel achieves more miles per gallon
than gasoline, many are concerned about the
impact that diesel passenger vehicles have on
the economy. From time to time, the combustion
in the engine can cause black emissions to spit
from the exhaust, which is actually very bad
for the economy.
While gas is actually the worst, diesel is taking
strides to improve engines and the impact on
the economy. Diesel is getting more and more
popular these days, as gas prices continue to
rise and rise.
Although diesel engines can have an impact on
the economy, they are the way to go for those
looking to conserve mileage. Diesel vehicles
cost more than gas vehicles, although they will
offer you more than you can expect. If you are
looking for a quality ride, diesel is the way
Gas Diesel Hybrid War
These days, gasoline prices may be crimping your
your household budget. You may like to reduce
the U.S. dollars that flow to the Middle East for
oil, or perhaps you are motivated by your concern
for the environment, or even the nagging reality
that oil is a depleting resource that shouldn't
To put it into prospective, the fuel economy are
the numbers posted on the window sticker of a new
vehicle. Studies have shown that the average
driver only receives 75 percent or so of the
mileage figures that are on the sticker.
You can use these numbers to determine the best
type of vehicle for your purchase. The numbers
will let you know how many MPG your vehicle will
get, so you can compare vehicles and then go
The gas electric hybrid vehicles are normally
priced higher than non hybrid counterparts,
anywhere from a couple of thousand dollars to
several thousand dollars.
Hybrids can get a lot of miles per gallon,
some averaging around 45 - 55. This is great
for those who want to save money on gas, as
hybrids can go many miles on a full tank of
fuel and they come with extended warranties
Diesel powered vehicles are yet another fuel
efficient option. Diesels are known for getting
extra mileage from every gallon of fuel. They
offer much better torque than many gasoline
engines. The price differential they have
over gasoline engines are usually much smaller
than that of the hybrid.
With plenty of options available, you're sure
to find what you need to help conserve fuel.
Before you make a purchase, always remember
to shop around and find what's best for you.
Gas Vs Diesel Boats
As you may know, diesel engines aren't something
you should take lightly. There are good reasons
why the rush to put them in cars back in the 70s
flopped. Diesel isn't the ideal power source for
Diesel engines gained the reputation for long
service life early on in the history of the
engines, mainly from engines that were used in
commercial operations. These were big, very
slow to turn engines that were usually in the
600 - 1,000 RPM range.
The long service life of the diesel engine isn't
really a myth when used in the proper application.
It's only a myth in pleasure craft, where the
engines are operated in-frequently at high and
low speeds, normally under very heavy loads and
If you plan to engage on some serious long range
travel, especially if fuel stops aren't available,
then fuel consumption will become an issue.
Diesel engines will normally burn 1/3 to 1/2 the
amount of fuel as their gas equals. Considering
the cost of the engines versus the amount of
fuel you'll burn during the time you own the
boat, fuel savings isn't really important.
Most questions of choice arise for boats that
are in the 28 to 34 foot range where either type
of engine is available with adequate horsepower.
Gas engines do have the advantage that they are
cheap to buy and also cheap to repair.
Diesel boats are just the opposite, as for the
price of one you could buy three gas engines.
For the price of a smaller in-line 6 cylinder
diesel, you can buy two gas engines.
Therefore, cost wise, unless you really need
diesel power, diesels aren't very practical.
The advantage to diesel comes only at the
point where the extra torque is needed because
a gasoline engine would simply be under too
much strain to have an adequate amount of
If you have a choice of gas versus diesel,
your first concern should be to determine
whether or not you can really afford to own a
diesel, as the initial price is only part of
If you simply can't afford to write a big check
for routine maintenance, then you will probably
be better off going with gas. On the other hand,
if you have a lot of money, diesel would be
your best bet. Diesel engines are great to
have, although they cost a lot of money to
up keep and they generally aren't the way to go
for those on a budget.
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 of diesel fuel on
the other hand has not advanced at the same rate as
the improvements of engines.
As soon as it is produced, diesel fuel begins to
deteriorate. Less than 30 days of refining, all
diesel fuel, regardless of the brand, goes through a
natural process called oxidation. This process forms
varnishes and gums in the fuel by causing the
molecules of the fuel to lengthen and start bonding
Now, these components will drop to the bottom of the
fuel tank and form diesel sludge. The fuel will
begin to turn very dark in color, smell bad, and
cause the engine to smoke. The engine starts to
smoke as some of these clusters are small enough to
pass through the engine filtration and on to the
As the clusters begin to increase in size, only a
small amount of the molecules will get burned, as
the rest will go out the exhaust as unburned fuel
Its estimated that eight out of every ten diesel
engine failures are directly related to poor quality
and contaminated fuel. The build up of contamination
in the fuel systems and storage tanks can clog
filters, thereby causing the engine to shut down,
and damage to the engine to occur.
The number one reason for bad fuel is due to the
increasing popularity of diesel power and the
accompanying increased demand for more diesel fuel.
Long ago, diesel fuel remained in the refinery
storage tanks long enough to naturally seperate and
begin to settle, allowing the clean fuel to be
drawn apart. Now, with the demand getting higher
than ever, the fuel is never stationary long enough
to settle, and the suspended water and solids are
passed on to the person buying the fuel - you.
The changes in refinery techniques is also a
problem. In order to get more products, diesel
fuel is being refined for more marginal portions of
the crude barrel. This results in a lower grade
product that is thicker and also contains a lot
As time continues to pass and technology gets better
and better, one can only hope that the quality of
diesel fuel improves. As it stands now, the quality
isn't good at all. If you run diesel fuel, all
you can basically hope for is that the fuel you
are getting isn't contaminated.
Gas Versus Diesel
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.
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.
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 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 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 the volume of the cylinder
remaining at the top of the stroke.
Serious damage to gas engines can occur if you attempt
to run a high compression ratio with a low octane type
of fuel. Detonation is the ignition of the fuel due
to the high temperature caused by a high compression
ratio that is developed by design. The fuel is
ignited prior to the spark of the plugs that result
in a rapid, yet uncontrolled burning.
Keep in mind, the diesel is a heat engine, using heat
developed from the compression of air. High compression
ratios are possible since the air is compressed. The
hot compressed air is sufficient to ignite the diesel
fuel when it's finally injected near the top of the
Fuel and air in the design of diesel engines are not
premixed outside of the cylinder. Air is taken into
the cylinder through the intake valve and then
compressed to make heat. The diesel fuel is injected
near the top of the piston's stroke in an amount or
ratio that corresponds to the load on the engine.
The higher compression ratio causes engineers to
design, and test the block, heads, head bolts,
crackshaft, connecting rods, rod bolts, pistons,
piston pins, etc., with a greater range of structural
capacity. To put it in other terms, diesels are
heavier than gasoline engines.
Deciding on gas and diesel can be tough, although
there are several reasons why you should use diesel.
1. Diesel engines produce twice the power
per gallon of fuel than gasoline.
2. A gallon of diesel is normally cheaper
than a gallon of gas.
3. Diesel fuel doesn't blow up. The fact
is, its hard to get diesel to burn at all.
4. Diesel engines will last four times
longer than gasoline engines.
5. Diesel fuel that is untreated will last
longer in storage than untreated gasoline.
6. Treated diesel fuel will last longer in
storage than treated gasoline.
7. Diesel fuel treatment will cost less
than gas treatment.
8. Spoiled diesel can be reconditioned to
refinery specifications, as spoiled gas can't.
9. Unmodified diesel engines can be ran on
Diesel Engines Forgotten Treasures
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
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
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.
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 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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