Why Are Diesel Engines Preferred Over Petrol Engines?

Globally, two types of engines are generally found – diesel engines and petrol engines. The classification is done based on the fuel used for the engines, because the construction, functionality and features of the engines vary on the type of fuel to be used. These engines can be found in cars, airplanes and even in commercial generators. Therefore, it would be worthwhile to spare some time and have a look into the reason behind the preference of one type of engine over the other.

Prerequisites

In order to have a deep understanding of the subject matter of this article, having a passion for the stuff under the bonnet would be helpful. But in any case, the material has been represented in such a manner that a person with little or no knowledge about mechanical engineering will also be able to follow; a bit of physics in your middle school or high school will suffice. To start with, let us try to understand the working principle of the two types of engines, so that we can infer the reason behind the popularity of one type over the other.

Working principle of diesel engines

A diesel engine is generally referred to as CI (compression ignition) engine. In a diesel engine, air is compressed by the pistons within a closed chamber by a process called adiabatic compression. Due to severe compression, the temperature of the air rises to very high levels inside the chamber. After achieving sufficient temperature, the fuel, which in this case is diesel, is slowly injected into the chamber in a controlled manner.

When the inflammable fuel comes in contact with the hot air, it starts burning. The gas produced from the combustion pushes the piston downwards which in turn produces the torque required. Due to its constructional features, it has very low leftover fuel and also the excess heat is dissipated easily, making the engine very suitable for prolonged hours of maintenance free operation under heavy loads. Among all the types of Internal Combustion engines, diesel engines have the highest rate of efficiency, sometimes more than 50%.

Working principle of petrol engines

Petrol engines, on the other hand, is an Internal Combustion engine with an entirely different working principle. Inside a petrol engine, fuel and air are mixed in a chamber and compressed gradually. Also, a spark plug is used to provide the necessary ignition point for the mixture, so that the entire process becomes quick and steady. Due to the presence of the spark plug, petrol engines are highly used in cold countries where the ambient temperature is very low and it is very difficult to maintain the temperature of the mixture suitable for combustion only through compression.

Also, the speed of petrol engines is higher than and its parts are lighter that of its diesel counterparts, making it the ideal choice for quick acceleration and high-speed maneuvers. However, the compression ratio of the fuel-air mixture is quite low for a petrol engine and it results in a lower efficiency of petrol engines as compared to diesel engines.

Which is the better choice?

Well, it depends on the nature of use. Experts recommend petrol engines for cases that need very high speed and high acceleration. Also, historically diesel engines are noisier than petrol engines and people associate it with nasty fumes coming out of the exhaust. But the fact is that carbon dioxide emission from petrol engines is higher than that of diesel engines.

Diesel engines are a better choice due to many factors like:

Cost of diesel is lower than that of petrol in most of the countries in the world.
Diesel engines last longer due to rugged build.
Efficiency and maintenance cost is a great deciding factor for the choice to be made.
At low speeds, diesel engines can generate very high power. This is the ideal case for commercial and industrial applications.

Due to all these reasons, it has also been observed that machines using diesel engines get higher resale values. Surveys have proved the fact that used diesel cars and used diesel generators generate more enquiries when put up for reselling. However, it is strongly advised to consult a domain expert to determine which engine to buy for your requirement.

The Future of Digital Currency Adoption

Up to this date, the usability, function and exchange of Bitcoins and other digital currencies have been limited and circulating around small communities-group of individuals or large enterprises-who have ventured into the world of digital currency. Since the community is small, the ability to spend or trade it for various products is also limited and a lot of this currency owners hope that it can be widely accepted in the future. Although these are possible, this will take time and a lot of discussions as the concern for safety and security is at large. Besides that, the government and some large institutions are threatened with the possibility of using such a system.

The Reluctance

Not many people widely accept digital currency. If you haven’t heard of it or aren’t one of those who have spent much of your time understanding, mining and acquiring the said currencies, you will not feel safe trading in or acquiring such currencies in exchange of items that you wish to sell or have. It has not been accepted widely and the fear of the loss it may acquire in the future is great due to the fact that there is no governing body in it. People would need to feel safe using it but this would normally require the interference and approval of the government and general sectors of the financial market.

The Need for a Controlling body

The transfer to digital currency would allow people to make online trading without issuing actual and paper money which are prone to being stolen. However, it is not a hidden fact that some digital currencies have been stolen too. The government would want to control it as there is a significant amount of income from the exchanges and trade. Other sectors not open to the actual value of digital currencies may find it hard to liquidate their assets and make use of digital currency exchanges.

Although the future of digital currency adoption is greatly possible, the greatest risk everyone has to deal with would be the security. For example, PayPal is trying to impose this on their system (the news of which eventually made the value of Bitcoin rise in one day) but the problem is, delivery schedules may often not be met and it would be hard to recover the said currency-also includes defects on products upon delivery. The possible adoption could take time and effort from both the government and independent sectors to work out the glitches in connection with fraudulent acts over the internet and sectors wishing to sabotage the project.

Don’t Invalidate Fire Insurance

Don’t invalidate your fire insurance policy.

I find this a very strange case but it just shows how important it is to read the small print as if you ignore the conditions of the policy your policy could be invalidated.

In this case it was a condition of the FIRE insurance that the SECURITY Alarm was maintained and monitored. Times had been tough for the insured and he let the maintenance of the security alarm lapse and as the ARC had not been paid for 6 months they stopped monitoring the site.

Vandals broke in and set fire to the factory. It was a furniture company and they incurred losses of over £750,000.

The case went to the High Court, the judge had nothing but sympathy for the Directors of the Company and he took ‘no pleasure’ in ruling that as it was a condition of the combined insurance policy that alarm was to be monitored by an external firm, the Insurers did not have to meet the claim.

There are often conditions attached to the insurance policies we take out which relate directly to the risk. We need to make sure our cars have valid MOTs in order not to invalidate the policy. We are required to notify the insurance company if we get a speeding fine but, to my mind oddly, you do not have to tell them if you decide to do the Speed Awareness Course rather than pay the fine.

I have just come across a case, now in front of the insurance Ombudsman, where an insurance company voided the policy and returned all the premiums because the policy holder had unwittingly exceed the value of the ‘valuables’ within their contents insurance. They had insured the contents of their house for £60,000 but there was a clause stating that the value of the valuables should not exceed 66% of this.

They had to rush their daughter to hospital, and while they were out the thieves struck taking goods and damaging the property to the value of £70,000. When assessing the claim the loss adjusters calculated that the value if the valuables in the house exceeded £40,000. Normally claims would be ‘averaged’ to reflect the under insurance, but the insurance company in this case argued that the under insurance voided the policy. As I said this case is in front of the ombudsman as I write.

Back to case in hand where a fire insurance claim was dismissed as a security alarm and monitoring were allowed to lapse. Clients of ours run a hotel and there is someone on reception all the time so if the fire alarm is activated there was always someone on duty to respond. We came round to the time when the annual contract with the ARC [monitoring station] needed to be renewed. The Hotel Manger wanted to cancel it as it was considered an unnecessary expense. I said I agreed but asked him to check with his insurers to make sure they had no objections. The Insurers confirmed; monitoring was a condition of the policy.

Often with in the insurance policy there is a clause that the fire alarm is maintained in accordance with British Standards. It would be interesting to know whether a similar claim has been dismissed as the Fire Alarm has not been adequately maintained.

Filling Up With The Wrong Fuel – A Customer Experience

October 17th 2014 – Accidentally putting petrol in my VW Passat instead of Diesel

The following is my tale of woe about my wrong fuel experience. Please don’t make the same mistakes that I made and save yourself the hassle.

On the Friday morning in question, I was driving my 6 month old VW Passat to work in Worcester as usual. The car is a B7 model 2 litre turbo diesel, not as good to drive as my previous VW Passat which was the B5.5 2 litre petrol model but not a bad car either. I had only had the car for 3 days and I picked it up with about a third of a tank of fuel in it on the previous Tuesday. I was sitting in the crawling traffic going into the town centre when the low fuel warning light lit up with a ping. I could easily have made it to work and back home on the remaining fuel but as there was a fuel station on my route into work and I was early anyway, I thought I would stop off and fill up with diesel before the weekend as I had a lot of running around to do on Saturday with the kids.

I pulled up at the pump and I remember running through the day’s tasks in my head so I wasn’t really concentrating on putting in the fuel, I was just doing that on autopilot. I filled the tank right up and then went to the kiosk to pay. I got back into the car and started the engine. It sounded rough which worried me and as I drove to the exit the engine stalled altogether. It then dawned on me what I had just done. I’d filled up with the wrong fuel. I’d had my previous car for 10 years and had got so used to filling up with unleaded petrol that I had just done what I was used to doing. I’m sure I probably turned as pale as a ghost and I just had an almost overwhelming feeling of panic because I was sure that I had just ruined a £14,000 car. To make matters worse I was blocking the station exit and there was a line of motorists behind me waiting to leave the station. I had to sheepishly explain to the chap behind me what I had done and I asked him if he would help me push the car out off to one side. He refused and told me to get it moved. Nice. The young lady in the next car, however, did volunteer to help and together we managed to move the car with her steering and me pushing on my own.

Wrong Fuel Removal – The Wrong Approach

The forecourt staff were sympathetic but I could tell this was a hassle for them too, one of them handed me a card that someone had left on the desk from a firm of wrong fuel removal engineers. I didn’t realise that the industry even existed until I saw the card, I did think that I should call my breakdown assistance firm and ask their advice first and they explained that they could have someone out to me in an hour and a half and that if they could remove the fuel from the car then it would cost me £250. I didn’t fancy sitting around for that long and I thought the cost was a bit steep so I called the firm on the card I had been given and spoke to a bored sounding lady who said they could have someone with me in about 30 minutes as there was a van in the area and that the cost would be £150. Whilst I waited I used my smartphone to search for “wrong fuel Worcester” to see what came up on Google. I found quite a few other companies offering the wrong fuel removal service but I couldn’t find the company named on the card who I had just called. I decided to sit tight and see what happened anyway.

About 45 minutes later a scruffy, dented Ford Transit pulled up next to me and door opened and clattered into the driver’s door on my car, my mood wasn’t good as it was and I got out of the car to confront this individual who had gone around to the back of the van. Thankfully, there was no damage to my car as the van had a plastic protector on its door. The van driver then appeared and announced that he was here to do the fuel drain. He was dressed in a paint covered overall and had paint all over his face and head. Quite obviously, he had just been painting. I followed him to the back of the van where he had an array of large 5 gallon plastic containers, a length of rubber hose and some sort of electric pump contraption. The equipment looked like it had just been thrown in to the back of the van along with various bits of rubbish and paper towels and the smell of petrol coming from the back of the van made my eyes water. I began to feel the panic rising again and had visions of a huge explosion occurring with me in the middle of it. When the “engineer” started to attempt to feed rubber hose down into my new car’s fuel tank (with no care being taken of the car bodywork which was now filthy all around the fuel tank aperture) something told me that this just wasn’t right and was probably downright dangerous. My sense of duty towards my fellow motorists on the forecourt kicked in and I asked him to stop what he was doing. I explained that I thought what he was doing was putting everyone at risk and he became somewhat aggressive and began to demand payment for wasted time. I had no intention of giving this chap my credit card and so I locked the car and told him I was going to speak to the police which, unsurprisingly, changed his attitude. As I walked off towards the kiosk I looked behind me to see him hurriedly packing the hose and container back into his van which then sped off in a cloud of smoke.

The Wrong Fuel – The Right Approach

It was more than an hour since I had put the wrong fuel in my car by this time, so I called work to keep them updated and then looked at my smartphone search page again for another wrong fuel removal company. The company that came top for the search “wrong fuel Worcester” had a great website, tailored for mobile display and had images showing uniformed engineers with well-maintained vans and also, many positive customer comments. I called the number and explained my predicament to a kind and sympathetic operator who assured me that an engineer was close and would be with me very quickly. My previous experience had left me a little suspicious and so I questioned her about the company, their engineers and their vehicles and she explained clearly to me about the procedure and the professionalism with which their representatives conducted themselves. This was good enough for me and 20 minutes later a smart looking van with company livery pulled up next to me on the forecourt and a uniformed engineer with a big smile on his face, got out.

He was a real breath of fresh air after the last chap. He was kind and courteous and spent a couple of minutes talking me through the process of removing the wrong fuel from my vehicle, explaining what the sparklingly clean equipment in his van did and roughly how long this would take. He explained about the cost involved and made sure that I was comfortable with this before going ahead. As he put protective padding onto my car around the fuel tank aperture, which he cleaned up beforehand, the engineer explained about the SPA passport that he held and he also gave me his Environmental Agency paperwork which allowed him to handle and transport dangerous chemicals, legally. This information and the engineer’s general attitude and consideration put my mind at ease and filled me with confidence that, this time, I had done the right thing.

I also discussed my fears about the damage done to the vehicle engine when the wrong fuel is introduced to the system and he supplied me with the following information which put my mind at ease on that front. Firstly, it is very rare that damage occurs to the engine of fuel system of a diesel vehicle when petrol is added. Only in circumstances where common sense is not applied, is there a risk of long term damage. Petrol is a solvent and doesn’t have the lubricating qualities of diesel fuel, therefore, if any amount of petrol is introduced to the system and is allowed to remain in the system then there is potentially a risk that, where there is metal to metal contact of components within the fuel system and the normal lubrication is compromised, excessive wear of those components can occur leading to failure in extreme circumstances. Also, the seals within the system can be affected by the solvent properties of the petrol which may lead to damage. There is a myth that it is OK to top up with diesel fuel if you’ve only added a little petrol to the tank, and to continue driving. This will lead to fuel system damage as described previously resulting in potentially expensive repairs being required. The most sensible and cost effective action is to get the fuel system completely drained and flushed through with fresh diesel to remove all traces of unleaded petrol.

This is just what the engineer did to my VW Passat and within 25 minutes I was ready to go. I was very impressed with the second wrong fuel removal company that I called out, they were prompt, efficient and the customer service and general attitude were brilliant, unlike the first company. The engineer explained to me about the problem existing within the industry whereby various “cowboy” companies had been set up and were being run by inexperienced and unlicensed individuals who were taking advantage of motorist’s vulnerable positions when they had put in the wrong fuel. Many people were being intimidated into paying up front for a fuel drain that was then performed by dangerously ill equipped individuals with no regard to the customer’s safety or the safety of others in the locality. He told me of many cases where he had been called out to jobs that he had to rectify after the “cowboy” wrong fuel company had done an incomplete job and had still made off with the money. It seems that I had had a lucky escape.

Once the fuel drain and fuel system flush was completed, the engineer started my car and it ticked over as if nothing had happened. I paid him with a credit card and thanked him for his assistance, in just 45 minutes he had come out to me and carried out a professional service with which I was very happy.

The Conclusion To The Wrong Fuel Situation

It’s fair to say that I learned a few things on that day when I put in the wrong fuel. Hopefully, someone else in the same predicament may come across this article before taking action and avoid some of the potential pitfalls. In summary, this would be my advice:

Pay attention to which fuel nozzle you pick up on the forecourt (this one goes without saying!)
If you have put in the wrong fuel, let the forecourt staff know, so that they can help you move your vehicle, if necessary.
Once you have told the staff or if you have left the forecourt, do some quick smartphone internet research and choose a wrong fuel recovery company with good customer feedback and a good informative website that shows a well organised and professional outfit.
If you don’t trust the engineer that arrives or you feel there is anything amiss with his/her conduct, don’t be afraid to speak up and, if necessary, turn them away from the job. Your safety is paramount and your vehicle was probably expensive. Don’t take a risk either way.
Don’t pay up front. Make sure you’re happy with the cost and the work involved. A good engineer will be courteous and will check with you beforehand anyway.

No Credit Auto Loan Offers Multiple Benefits to Young Car Buyers

The Birth of No Credit Auto Loan

Traditionally, young car buyers were considered extremely risky because they had no credit history. Lenders had no information to calculate the credit repaying ability of young buyers and so, they rejected their loan applications.

But, things changed with increasing competition. Lenders and online auto financing companies understood that they were losing a large segment of the market by avoiding people with no credit history. So, they introduced a special program called no credit auto loan.

Benefits of No Credit Auto Loan

If you are a young car buyer with no credit history and looking for a loan, you will have to apply for a no credit auto loan. The loan program is specially designed for car buyers without any substantial credit history. Following are the benefits of applying for the loan program:

You can buy a Car easily

Automobiles have become extremely expensive. A brand new automobile costs more than $30,000. Even a used car is available for more than $15,000. The higher price of cars has made loans indispensable.

Sadly, people with no credit history were not able to buy a car before the introduction of no credit auto loan. Today, the loan program is a boon for young car buyers because it provides them with a golden opportunity for buying the car of their dreams.

No more relying on Public Transport or Parents

No credit auto loan helps you buy the car of your choice. It means you don’t have to spend time in waiting for crowded and unreliable public transport. Moreover, you won’t have to convince your parents to let you drive their car. Total freedom, isn’t it?

You can get Lower Interest Rates

Most young car buyers without any established credit history shy away from no credit auto loan. They believe that the loan program is expensive and out of their reach. But, the reality is different. You can get low-interest rates by making down payment and bringing a co-signer. Down payment reduces the loan amount and manifests your stable financial condition. And, a co-signer ensures the lender of regular payments. Both these things reduce the lender’s risk and will definitely help you in reducing interest rates.

You can build your Credit Score quickly

To get a loan, you need a good credit history. But to build a good credit history, you need a loan.

It is common for lenders to check your credit score before approving your loan application. Previously, young car buyers faced the problem of loan rejection because of their inadequate credit history. But, no credit auto loan has solved this problem. Anyone with no credit history can get an auto loan at affordable rates and build their credit score.

It is a Better Option compared to Leasing

Leasing allows you to rent a car for a specific period of time. At the end of the lease contract, you have two options. You can return the car to the dealer or buy it from him. It means even after paying regularly for several months, you will have no right of ownership.

Such a problem will not occur if you obtain no credit auto loan. Every payment that you make will help you in becoming the owner of your car.

How to Get Started?

Now that you have understood the benefits of no credit auto loan, you must start the process of obtaining the loan program. The loan process is quite easy and can be completed online. You can take help of an online auto financing company and submit your loan application via internet.

All the Best! Hope you find the perfect no credit auto loan program for your perfect car!