January 16, 2012
Thinking of buying a second hand car and are not sure if you should choose a petrol or diesel car, find problems that commonly occur and make an educated buying decision.
For many years, I have been driving both petrol and diesel engine cars. This is my advice, and when I go looking for my next car, these are the things I’ll be looking out for. But before I get into the list of checkpoints, here is some general information about diesel engines:
Diesel engines made stronger than petrol engines as the forces within the motor are really high, almost double that of their petrol counterparts. The compression inside the cylinders is really high because diesel does not use spark plugs to ignite the fuel. Diesel is compressed until it ignites. Glow plugs are used to warm the initial fuel mixture and aid the starting process, that’s why you don’t just turn the key as you would with a petrol engine. You need to heat the glow plugs first before you swing the engine.
A diesel engine is therefore highly stressed and as a result, it has a stronger engine block casting, much stronger cylinder head and stronger parts all round. All these things add weight, and as the engine is heavier, the engine mounts need to be stronger and heavier too same with the front shock absorbers it’s a knock on effect of trying to ignite relatively stable diesel fuel using high compression. So in short, diesels are heavier as they are built stronger.
The benefits of course are that diesel offers very good economy (I think the VW 1.9 Tdi is about as efficient as a Toyota Prius) and this is further improved when you add a Turbocharger. And this is where some of the problems begin when considering a used diesel engine car if you do not service them regularly, you stand the chance of over stressing a motor that is already quite stressed. By not changing the air filter when dirty, will make for an engine that runs hot and the item that takes the strain most is the turbocharger.
I’m not saying you should avoid used diesels, it’s just that they are not exactly like petrol. In return for the economy, make sure they are well looked after and keep them serviced regularly.
NOTE: It’s worthwhile noting that this information is for USED diesel engines, but following this advice will definitely prolong the life of any engine.
Benefits of Diesel:
Fuel Efficiency: Diesel fuel has about 14 percent more energy in it than petrol fuel, so it’s going to be hard for petrol to beat diesels economy. When driving long distances at a constant speed, diesel’s economy is unbeatable.
Pulling Power: Diesel delivers raw torque right from the bottom end. When towing a boat or a trailer you sometimes need to check that it’s still with you!
Well made Engines: As diesel engines are built stronger, they tend to last longer too. Make sure they have been serviced as required.
Be aware of the following things:
- Worn glow plugs: Diesels tend to start first time, every time. If you need to let the glow plugs go again, or if the glow plug indicator light is lit for a period of more than 5 seconds, it could mean that they have seen better days and they are expensive, much more than a set of petrol spark plugs!
- Oil and Sweating: Because of the high compression experienced with diesel, make sure that there is no sweating from around the head gasket or sump.
- Turbo: A worn turbo and inter-cooler that are covered in oil or show signs of leaking are to be avoided as repairs to them are costly and usually require replacing. Turbos that are worn show signs of oil use, smoking engine and/or lack of power.
- Injectors: If you put your foot down or accelerate aggressively, and the car leaves a plume of smoke behind, then it’s reasonable to assume the injectors are worn (if the car did not smoke with normal use). This can be costly as the whole injection system needs recalibrating when they are replaced.
You should feel quite at home in a diesel powered car, it’s not really all that different from a petrol car. You should note improved economy, and a lower revving engine.
I’d be delighted if you found this article useful and that you find a better car for your needs.
November 11, 2011
Diesel engine cars carried by Mercedes Benz has consumed majority of their car sales in the previous years. You may have judged Mercedes Benz to generally carry out a line of cars that inhibits class and world art when it comes to luxurious designs. With the vast creation of super power vehicles created by other car companies, it’s somehow a given nature to forget that Mercedes Benz has also created parts of diesel supported engines because there has been an assortment of fours, sixes, eights, and twelve’s made already.
Because of some factors that diesel power has entailed, most Americans now prefer using hybrids. Some people were really bothered with how diesel makes grumbling noises on the engines and is also unreliable. Long ago, Europeans have diversified the use of diesel on passenger cars since it also includes a cheaper rate. To read other mercedez articles make sure to visit Melbourne Mercedes.
Because this model uses diesel, it is much more of a cowboy when it comes to its engine power performance compared to the E350 Mercedes Benz Sedan. This model entails a larger sum of price compared to Mercedes Benz E350 Sedan. The diesel may be known for its noise and inconsistency, but when it comes to the speed level, it can also compete with the E350. With just a gallon of diesel, you can already run to 22 miles entirely and this is even far comparable with gasoline usage.
Longevity is also an added factor in using diesel power. Another common thing is to find users of the diesel engine Mercedes Benz automobile exceed beyond 300,000 mileages. The only difference that it has is the back and front badges present on the car. Car lovers would love the added features on this car since it also contributes to its overall beauty and quality.
There are extravagant features present on this model. There is a monitor given freely for basing the needed information despite not needing the feature on navigation system. Other given features on this model are the remote system already made available on doors, windows, and mirrors as well. Mercedes Benz has also developed a wider choice of music players on its sound system such as cd playing, the use of flash disks and external memory, and also the simple radio stations. More information on the topic of mercedez is located at Mercedes C Class.
There are now light controls with the interior of the car, all of which are soft to provide gentleness. What makes it even more appealing is the added feature of the Night View Assist Plus which usually costs more than a thousand. The system has now been displayed on the screen rather than on the instrument cluster. By using this tool, you can develop a sharper vision on which road you are traveling.
It is also a surprise offer for a $660 worth of massaging driver seat on the E Class model. Buttons are on the sides of the seat and you can just press them conveniently for a massage. If you would prefer to relax a while, you can simply press the buttons entitled for the certain body parts that you would want to have for massage.
You can also select the strength of the massage that you would to be pressured on the body parts. Secured safety measures are directly implanted on the driver seat as you turn on the speed on its sport mode. There is no cost entailed on the speed using sports mode. Lowered sport suspension and disc brakes for both front and back trims were genuinely added to make the car model run like a sports car.
All the features included in the package makes it even more classy and elegant. Among the features, being able to run the car without keys is the best feature added. Drivers would often be amazed with the headlights that include curve illumination when they are driving at night time. Consumers have continued adoring this tool because of its effectiveness. You will only get to use lesser fuel on the E350 model because it uses diesel and is also built for long term travel range.
August 23, 2010
During the great recession, the auto industry in the USA took a hammering and this served to accelerate a trend toward more efficient cars. Gasoline prices are no longer low, and lumbering, inefficient cars are now alien as we have seen the problems caused by very expensive fuel, even without a recession.
We are now likely to see more European-style cars on the road in the US. Europeans have long seen the value of efficient vehicles and the kind of car we see on American roads is almost unheard-of here. Following trends, we can imagine an influx of European vehicles including a much higher proportion of diesel engine vehicles as well. Diesel engine cars and trucks have a far better efficiency, even though the petro diesel required to fuel them can be a little bit more expensive.
If we can foresee a definite upward trend from the one in 20 or so diesel engine cars currently in the US toward the huge numbers popular in Europe, then we can see how biodiesel may have a considerable future there. As it emits very little in the way of greenhouse gases and can be made from readily available products, biodiesel fuel is much more friendly to the environment. Vegetable oil or animal fats form the basis for making biodiesel and the process of transesterification is not that difficult to master.
Some of us have tried making homemade biodiesel in our garage and been pleasantly surprised. You might smell the makings of a cottage industry and be aware that in your particular locale there are no dedicated or existing biodiesel distributors.
As an entrepreneur, commercial biodiesel may be in your future. Look at your supply chain and see where you could get the oils or fats, the caustic soda and the methanol in required quantities. You will need a reasonably sized space to be able to set up the production process and while it will require a bit more than just a simple ramping up from wherever you are now, the basic parameters remain the same.
Before you will be able to sell products commercially, you must ensure a good level of quality and purity, get certified and find the right operational business licenses. The good news is that local governments, being keenly aware of climate related news, may make grants and incentives available to you to help you fund your operation. It is very trendy to be sustainable these days and authorities realise that they should make public funding available to those who are following this trend.
Look at those who are already established. In certain parts of the country, biodiesel fuel users are more in evidence, especially in new England and the Northwest. Do your research well and why not profit from a trend which is yet to fully emerge? With so much change coming on the horizon, ever so much faster than we may realise, it only makes sense to become more sustainable as quickly as we can by turning to environmentally sound energy sources. Try biodiesel today, and see for yourself what the experience brings!