The engine of each car is its “heart” which deserves to be tended to very carefully.  As now winter is at its peak right now, and as the temperature dips in most parts of the country, you need to take good care of your car to avoid any unexpected damage in the car especially the engine. Herewith a bit of planning, you can ensure your car is ready for the winter weather.

Change the Oil

Dirty oil is bad for your engine at any time of the year, but it's even worse in the winter. A regular oil change is easily one of the most important things you can do for your car's engine.

The engine oil helps keep vital parts well lubricated and ensures the engine doesn't overheat.

If the oil is dirty, it will be even thicker, and thick oil will not flow through the engine properly.

Check Your Coolant

Your engine has coolant to help keep it from overheating, but this important fluid can become contaminated easily. One important consideration for engine coolant is the level of antifreeze.

If there is too much water in your cooling system, the liquid could freeze in cold weather, blocking coolant flow and leading your engine to overheat.

Have the cooling system checked before winter to make sure the mixture is right.

Allow Your Engine to Warm Up

In the winter season, it may be wise to warm up your engine before driving it. To do this, you can allow your vehicle to start for about 30 seconds before driving it.

After this 30-second warm-up period, drive your car gently to allow the engine components to come up to temperature.

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Fuel-injected motorcycles are quickly taking over carbureted ones, which ruled the roost until the beginning of the new millennium. Almost every premium motorcycle comes fitted with a FI system, as things stand today. Let’s find out the difference between a carburetor vs a fuel-injected motorcycle.

Carburetor

The most basic and until recently, the most prevalent fuel system used in two-wheelers, especially in Nepal, is the carburetor. To explain the basic working of a carburetor, think of it as a tube that feeds an air-fuel mixture into the cylinder from one end, with an air filter attached to another. Now, somewhere in the middle of this tube, the air passage area is restricted to increase the velocity of the air passing through. This little area or part of the carburetor system is known as the venturi. By increasing the velocity of the air through the narrow area, a low-pressure pocket is created, which in turn facilitates drawing fuel from a jet placed near the venturi through suction.

The fuel jet mounted near the venturi draws its fuel directly from the fuel tank through a float chamber, which is a small fuel reservoir, with a float valve that when it is completed, cuts the fuel supply and resumes when the jet draws fuel from it. Then the resulting mixture of air-fuel is supplied to the cylinder where combustion takes place.

This is a very simple description of how a carburetor functions, while modern carburetors are usually more complicated in nature, like constant velocity or CV carburetors. To control the air-fuel mixture, these carburetors make use of components such as a diaphragm, needle valve, and pilot jet.

Advantages of carburetor

• They cost less and are easy to manage.

• Carburetors allow the users to tune them to their requirements.

Disadvantages of carburetor

• Not efficient system.

• Old dated design.

• Air-fuel mixture fluctuates, affecting engine smoothness.

Fuel injection

A Fuel Injection system is composed of a complex series of electronics and sensors, unlike carburetors. The fuel is pulled from the tank in carbureted systems, while in a Fuel Injected system it relies on a fuel pump mounted within the tank for fine-grained control over the fuel flow. In the combustion chamber, the fuel injection nozzle also goes directly inside. In the case of FI devices, the pressurized fuel is very well atomized as a homogeneous mist, facilitating very efficient and safe combustion.

Advantages of fuel injection

• Optimized air-fuel mixture and atomization allow for cleaner, more efficient combustion.

• Better throttle response.

• Better fuel efficacy and more power.

• They do not easily breakdown.

Disadvantages of fuel injection

• They are more expensive than a carburetor.

• Cannot be repaired by a simple tool, which is expensive

So though, considering its cost, the benefits of a FI system are pretty obvious, you'd still be one of the millions who still put their trust in the good old carb. It’s all about the preference of the people after all.

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By burning fuel (and air), an internal combustion two-wheeler engine transforms chemical energy into mechanical energy, which in turn sends power to the rear wheel. However, the engine continues to produce a lot of heat during this process, which has to be cooled in order for the motor to run smoothly. For this, various engines use various kinds of cooling systems to cool themselves. The two types that are most common are air-cooled and liquid-cooled. 

In addition, if you would like to know a little more about the engine's function and its supplementary parts, take a look at the link below.

Carbureted vs Fuel Injected Engine | REVIEWS

Air-cooled Engine

On commuters or budget-friendly bikes, or in some cases, large V-twin motorcycles such as the Harley-Davidsons, air-cooled engines are most widely used. These engines are equipped with outer fins that increase the motor's surface area, thus increasing the airflow around it. In essence, these fins create channels around the engine and use moving air as a common coolant which helps subside heat produced from the cylinder. The concept's simplicity ensures it's simpler to create and manage, and far less likely to fail. That said, on small-capacity motorcycles that generate less heat than high-performance bikes, air-cooling is the most powerful.

Advantages of Air-cooled Engine

The following benefits are given by air-cooled engines:

1. Its air-cooled engine architecture is simple.

2. Owing to the lack of water jackets, radiators, rotating pumps, and the weight of the cooling water, it is lighter in weight than water-cooled engines.

3. Manufacturing is cheaper. 

4. It requires less maintenance and treatment. 

5. This cooling system is especially beneficial when extreme climates are present. 

Arctic climates, or when water is scarce, as in deserts. 

6. No chance of frost injury, such as cracking of cylinder jackets or tubing of radiator water.

 

Liquid-Cooled Engine 

Performance motorcycles are expected to run much hotter than low-displacement motorcycles that rev higher or use higher compression ratios to extract additional power. These engines also require a dedicated liquid-cooling system that stops the motor from overheating. The idea is very familiar to cars and uses coolant, which retains excess heat through small passages across the engine. The hot coolant is then pumped through the radiator, which cools down the solution along with an outside fan and moving air. The cooled liquid is then pumped back around the turbine, taking the heat down to the optimal levels of activity.

Advantages of Liquid-Cooled Engine 

The following benefits are given by Liquid-Cooled Engine: 

1. A motorcycle with liquid-cooled engines is cleaner than an air-cooled one and more resistant to breakdown.

2. More power/torque is provided by a liquid-cooled engine than by an air-cooled one.

3. A liquid-cooled motor, as cooled by liquids, retains a higher temperature control.

4. It is easy to control liquid-cooled ones (better riding experience).

5. Liquid-cooled engines are quieter and somewhat less harsh than air-cooled engines.

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