How to choose spark plugs

For different types of motor, you need to choose spark plugs with different parameters.

In order to choose the right spark plugs, it is necessary to take into account their parameters and compliance with the car model. Accurate information can be given by the VIN code of the engine and the marking of the candles themselves.

How to choose spark plugs

Most car owners rely on the opinion of sellers or car service employees when choosing spark plugs. Meanwhile, it is not difficult to independently clarify the selection criteria. The main requirements for choosing candles:

1. The size is suitable for specific car model.
2. Specifications correspond to the type of engine.
3. It is preferable to buy candles original.

To select spark plugs, you need to study the instruction manual for the car. It is not uncommon for a manufacturer to specify specific brands of spark plugs that are suitable for that machine. The easiest way to select is to buy candles according to the sample.

Select by VIN code

One accurate method for selecting spark plugs is by VIN number. The data encrypted in it is suitable for all kinds of spare parts. By this combination, you can completely identify the car.

VIN code for spark plugs

There are several ways to find spark plugs by VIN code:

• on special online services - a unique car number is entered into the form on the site;
• on the websites of online stores selling auto parts and accessories;
• catalogs in offline stores and service centers.

The method is especially relevant when searching for candles for rare or new car models.

Choose a manufacturer

An important criterion for choosing spark plugs is the manufacturer. Experts recommend paying attention to several brands:

1. Bosch - during its work, this company has produced more than 20 thousand models of candles for different types of cars.
2. Champion - manufactures parts for high-speed automotive engines.
3. NGK is a company that has been manufacturing automotive components for about 100 years. High quality is combined with "democratic" prices. Candles are suitable for different classes of cars - from budget to premium.
4. Denso is the brand that Toyota uses for its cars.

When looking for candles, you should also take into account the service life and the recommended replacement frequency.

See also: The best windshields: rating, reviews, selection criteria

Bosch spark plugs

Basic parameters and their meaning

For different types of motor, you need to choose spark plugs with different parameters. The most important ones are:

1. Number of electrodes. Most models come with 1 central and 1 side. Candles with multiple side electrodes are more durable.
2. The heat number is the time it takes for the spark plug to glow to the temperature at which it ignites the air-fuel mixture.
3. Electrode material. Most of the models are made of a mixture of steel, manganese and nickel. The platinum coating helps to increase the service life.

Additional information on a specific model can be found by examining the label. To choose the right candles, the data must be compared with the table of the car manufacturer.

Spark plugs, why you need to change them and which ones to choose?