Time passes by, but something stays unchangeable; thus, 2011 jeeps still include one of the most popular models – Jeep Grand Cherokee. Since 1993, it is unbelievably popular and loved by people. It is always more refined. If earlier it was a car number one, nowadays, there are lots of cars that started to share the leading positions with this models; but still it keeps high, share places with SUVs of other producers from Europe and Japan. Though it is a descendant of the generation of vehicles used during the WWII; Japanese and European cars are supposed to be of higher quality than 2011 jeeps.

They say that 2011 Jeep Grand Cherokee is more of evolution. This version is 4 inches longer than previous of 2010. The complaint of the customers about rear legroom was resolved and now nothing can prevent from feeling comfort and pleasure of a ride. All these extra 4 inches were supposed to give extra pleasure and conveniences. Still, what is really important about it, this beauty will be able to fit into your garage, so you will have no problems with it.

But the most important changes of 2011 Jeep Grand Cherokee were made inside. You will find inside such great safety standard stuff as active head restraints, curtain airbags within all the sides just like seat mounted thorax airbags. You will definitely note the replacement of cabin materials from hard plastic to soft touch materials. You will find there lots of automatics and electronics. The dual-pane panoramic sun roof won`t leave you indifferent, you are going to be astonished and excited watching sunsets and dawns. Also, caring about your comfort, there is Uconnect phone for hands-free calling; that will make your driving easier and safer.

And we can`t but mention the engine of the car. Actually, it is the first application of Chrysler’s all-new 3.6-liter V-6 engine. This means that you have 500 mile driving range and an 11 percent increase in fuel economy. 5 speed automatic transmission is coupling 290 horsepower engine. You can opt for different packages and vary your life style.

The robust and simple four-wheeler machine of stone-age to stylish and sophisticated Mercedes, maneuvered by animal to present hot shot engine, men have revolutionized the transportation means to a very large extent. A new dimension of locomotion for the bipedal were introduced in the year 1672 when Ferdinand Verbiest, a member of a Jesuit mission in China, innovated a feeble but outstanding steam-powered vehicle that stunned the entire world.

There are many consideration of the origin of the word “jeep” all of which has demonstrated intricate to verify. One perception holds from its innovation that the vehicle bore the designation Government Purpose, which was phonetically clear into the word jeep. A jeep stands for its solidness, chaste and simple vehicle capability of carrying a large mass. From uniformed personals to hurrying passengers jeep provides them all sort of required facilities to its passengers. A jeep is generally an open-roofed top, having less complexity in its design signifying openness with the Mother Nature. A jeep also signified a sense of brotherhood and belief as it was basically made for the soldiers and army personals whereas cars are closed box providing space for all types of passengers in the entire world keeping them aloof from the Mother Nature. It provides privacy and solitude to its riders. Its bunged features make it isolated and secluded from the Mother Nature.

But it is evident that whatever be its type or look, humans have touched skies in automobile. From cars to jeep everything in the four wheelers were enhanced looking into the comfort and needs of themselves. Cars from jeep signify that the humans have touched every possible limit in all the various fields of life. For every person who is broad- minded or narrow minded cars seem to satisfy both, but jeep will be preferred by only those who seem to live their life at the fullest. Jeep runs on rough, uneven tracks on the mountains, on rocks, coarse and loosely manufactured road thus showing one’s fitness, stiffness and confidence whereas cars signify comfort, soothe and calmness.

Cars from jeep hold for human emblem of improvement, enhancement, and variety and never give up attitude. Improvement and enhancement in the present technology, lifestyle, needs etc, variety upholds for technique and results and last but not the least it’s the never say die attitude of humans which are making them more and more thirsty for power and simplicity. Men are continuously evolving themselves and trying to keep themselves abreast with the requirements to make human life more lavish and luxurious. It’s very easy to transform cars from jeep but it is very difficult to transform a disclosed jeep to an enclosed car because it is tough for the people loving style and deluxe transform themselves to solid and uncomfortable lifestyle.

This article seems to signify the transformation of openness of society to slowly transforming private world where men are becoming more and more secluded from pain and sorrow of humanity.

Jeep is a subsidiary car brand belonging to the Chrysler group. Because it’s the oldest and most known SUV and off road carmaker in the planet, the word “Jeep” has changed into a common term describing Sport Utility Autos and off-roaders.

The first Jeep and praying for the US armed forces that needed a tough, trustworthy car that might be driven in all terrains and in all weather conditions. They needed an off-roader that would simply be transported all around the planet and was easy to maintain, so the first Jeep models were the perfect solution for the army wants. The first Jeep produced in big the M715 model that was mainly employed in the Vietnam War

The civilian models derived from the army automobiles produced by Jeep in the 1950s and 1960s so they kept their wonderful off roader capabilities. In truth, for a number of years, enthusiasts all around the world that wanted a car to get to the highest tops bought the removed the sole automobiles ready to deliver such intense performance. Today Jeep sells several SUV models, among which the Wrangler, Commander, Compass and Patriot are the best known. Here are 3 most important models.

Jeep Wrangler TJ

Introduced in 1997 to replace the Wrangler YJ, the TJ model is considered a turning point in the history of jeeps. The basic YJ platform was kept intact but everything else was almost completely overhauled. The most noteworthy change was the updated coil-spring air ride suspension which greatly improved the vehicle’s ride and handling. The TJ opened the car up to a wide range of jeep wrangler accessories and other options. On the aesthetic side, the TJ returned to the old CJ model’s iconic round headlamps, which many Jeep aficionados were very happy with.

Jeep Rubicon

Another huge event for Jeep was the introduction of the 2003 model Jeep Rubicon. One of the most popular Jeep models for off-roading, rockcrawling and road driving, the ’03 Rubicon was such a success because of its versatility. It is still extremely popular and likely will be for a long time. With the huge market for jeep parts, the options for what you can do with a Jeep Rubicon are endless.

Jeep CJ7

Before the Jeep Wrangler YJ replaced it, the CJ model, especially the CJ-7 model, was the most popular name in the Jeep franchise. The CJ-7 featured a unique all-wheel drive system called Quadra-Trac that is still extremely popular today in the mud racing sport and in rockcrawling. The modern jeep models are all based on the original CJ Wrangler and for that, it is one of the most important Jeep models ever.

Note: Yes, there’s a reason there are no Cherokee’s listed: I feel like the lack of Jeep Cherokee accessories and other options for modifying the model make it less of an important part of Jeep’s history, although I do realize it’s importance in bringing the Jeep name to those unfamiliar, or uncomfortable with Jeep’s off-road origins.

Jeeps are considered to be an all purpose vehicle that is extremely capable of navigating through rough terrains. The prototype of Jeeps were initially designed by the Department of Army for the intention of carrying out supplies and personnel. In a while, Willys-Overland and Ford were the two companies that produced more of the jeep prototypes. Ultimately, both the firms manufactured the first ever production batch of jeeps.
The origin of the term Jeep is not at all clear; on the other hand, people still remain under the notion that this term came from phonetically indistinct intonation of vehicle or ‘GP’ that are utilized for general purpose.

Some people also believe that the word is basically used for multipurpose vehicles that came from a character in Thimble Theater comic named Popeye and that character was called as Eugene the Jeep. This was the kind of the character that could even walk through the ceilings and walls, fly, climb trees, go anywhere, and do whatever it wanted it to do. In the early times, Americans believed that the soldiers were significantly impressed with the flexibility and usefulness of the jeep vehicle that was named as the prototype which was perceived from the comic character. After the first jeep model, the more jeep models were originated from Willys-Overland and Ford. The Willys-Overland Motor Company was nominated for producing the initial massive production batch of jeeps throughout Toledo, Ohio.

The Jeep vehicles are greatly copied in large number of countries such as The Netherlands and France. Hotchkiss designed the French version of jeep where as Nekaf is the leading Jeep manufacturer is The Netherlands.

While SUVs get a bad rap in the press these days about being not very fuel efficient, the Jeep Cherokee XJ is capable of getting quite good fuel economy. It may not match a Prius or a Civic but I would not try to take one of them off road either.

The first step in improving the fuel economy of the jeep is to make sure it is operating correctly. Ensure that all connections to the ECU are clean and properly connected. Also check all the ground wires.

There are at least three different computers used in the XJ series of Jeep Cherokees. The Jeeps made by AMC used the Renix computer system. This system uses a few more inputs than the later Mopar system and in some ways is more complex. The Renix system uses a knock sensor and is therefore capable of tuning the spark advance curve to an optimum mix. Some Renix controlled engines like the one in my son’s XJ Wagoneeer will actually get better fuel economy using higher octane fuel. The fuel economy increase is enough to more than offset the extra cost of the higher octane fuel. You will have to experiment with your own engine to see if higher octane fuel will give better fuel economy and higher MPG. For most engines, the 87 octane fuel will give the best fuel economy.

Also, note that there is a huge difference in fuel qualities from various distributors. Ethanol content lowers MPG as well as many other additives. Again you will have to experiment with fuel form various distributors in your area to see which one offers the best fuel for the highest MPG. In my area it is the Shell station that offers the best fuel economy when comparing fuel cost to MPG.

The ignition timing of the XJ Cherokee is not adjustable. The ECU controls these functions on a set table and feedback from the knock sensor if equipped. However it is possible to trick the ECU into advancing the timing by adjusting the mounting points of the Crank Shaft Position sensor. By simply slotting the holes, the sensor can be repositioned to adjust the actual ignition timing. Due to the extreme difficulty of accessing he mounting bolts of the CPS and the minor improvement in fuel economy, this modification made not be worth the effort. Adjustable CPS sensors are available from some Jeep accessory vendors.

One of the biggest factors that effects the MPG of a Jeep Cherokee is it transmission. While the Asin four speed automatic is very durable and features a lock up torque converter, it simply cannot match the fuel economy of the five speed manual transmission. If you are choosing a Jeep for fuel economy, choose one with a five speed manual transmission.

Also, note that if you have a 242 transfer case also know as selec trac, you have the option of full time four wheel drive. Don’t use it unless the road is slippery. You will get the best MPG by using two wheel drive.

While a disconnect front axle was offered on some Cherokees, on many XJs the front drive shaft is always coupled to the drive axle. On the non disconnect axle vehicles, you can improve the fuel economy by removing the front drive shaft. Just remember that you will have to put it back before you can use four wheel drive.

Tires make a big effect on MPG. While fitting a Jeep with larger tires is common, there can be a huge negative effect on fuel economy. Larger tires are usually wider and have a more aggressive tread pattern than the smaller street tires that originally came on the XJ. Using a set of narrow, low rolling resistance tires can help MPG in street driving. On one Jeep Cherokee I own there was a noticeable increase in fuel economy when I temporarily fitted a set of OEM sized tires. For best fuel economy, you may wish to consider having a set of street tires and set of off road tires.

No matter what tires you run, you will need to pay close attention the tire pressure. Generally speaking, the higher the tire pressure, the better the fuel economy. You will have to adjust the air pressure in your Jeep by balancing the factors of tire wear, ride comfort and traction. Always keep your tires properly inflated and air back up before driving on pavement after your off road adventures.

Another big factor for MPG is wind drag. Even the factory roof rack makes a noticeable difference in fuel economy. To maximize fuel economy, remove and roof racks or other roof mounted accessories.

When lifting a Cherokee, it is common to remove the factory air dam. However, this little piece of rubber does improve fuel economy. Keep it in place and straight for best MPG. Also the rubber mat under the engine helps to improve air flow under the XJ for a slight improvement in fuel economy.

Another common modification that reduces fuel economy is armor and protection accessories. Your bumper guards and skid plates and rock trails add weight and in some cases disturb the air flow. Consider the effects on fuel economy when making these modifications.

Proper wheel alignment will increase MPG as well. The front tires need to be pointed as close to straight ahead as possible. Set the toe in as close to zero as possible. The inverted Y steering arrangement of the XJ causes the toe to change with ride height so to maximize the fuel economy, set the toe with the Jeep loaded as you normally drive it.

Possibly the largest single factor effecting fuel economy is your driving style. To maximize MPG, start off slowly and maintain a steady speed. Avoid unnecessary stops. Keep moving as much as possible even at a very slow speed in stop and go traffic. Try to anticipate hills and accelerate before gong up the hill. Let you speed drop naturally hill climbing the hill. Avoid long idle times especially with the AC on.

One questionable area of increasing fuel economy that I have had mixed results with is fuel additives. Many people have reported that adding a small amount of acetone to the fuel will increase the MPG. I have not noticed any measurable increase from adding acetone. However, occasional use seems to prevent stumble and misfires so it seems that it would increase MPG. Try it by adding one ounce of pure acetone for each ten gallons of fuel.

Another additive that seems to help cure fuel supply problems is Seafoam. Seafoam smells like an alcohol blend and probably helps mostly to remove moisture from the fuel system. However, I have found a variety of fuel related issues form clogged or sticking injectors to carbon fouling of the combustion chambers seems to be helped by adding a can of Seafoam to the gas tank.

Oil choice and oil additives can also be used to increase MPG. However the long term effects on the engine need to be considered when choosing oil. Using lower viscosity oil can help increase MPG. However older engines may not lubricate well on low viscosity oils. An additive like Friction Free 3000 has been shown to increase MPG by reducing internal friction in the engine. Give it a try in you engine to see how it works for you.

Always use high quality oil in your Jeep Engine. The design of the 4.0 block causes some parts of the block to be very hot and will cause wax or paraffin based oils to separate. Wax based oils will need to be changed more frequently due to thermal breakdown.

Keeping your Jeep well lubricated in other areas will also help boost MPG. Check differential fluids, transfer case fluid and the transmission fluid on a regular basis to maintain proper lubrication and reduce drag. Locker and limited slip differentials may need to be check more frequently tan the factory recommended intervals. Also, if there is any chance that water has entered these parts due to off road adventures, change the fluid as the water and grease mixture has poor lubricating quality.

Through proper maintenance and a being aware of the effects of common modifications, you can maintain reasonable fuel economy in your Jeep SUV. Higher gas prices do not have to mean the end of your four wheel fun. It may even make some modifications like a second set of tires more economically viable. So pay attention to details and enjoy driving your Jeep Cherokee.