Do I need to change the oil before winter or not?

Oil changes are one of the most basic procedures that everyone seems to know about. But, many motorists will be interested to know – whether or not the specifics of engine maintenance change depending on the time of year.

The question about the efficiency of oil change most often arises before the onset of the cold season. Today, universal all-season oil is predominantly used, which is suitable for year-round use. If we take a formal approach, it is not necessary to change the oil before winter.

In winter, however, due to the effects of low temperatures, the engine works in a more difficult mode compared to summer. Fresh oil that has just been poured in will make the motor work much easier. So those motorists who always change their oil before the winter season are doing the right thing.

They're doing the right thing.

SAE deciphering

Oil viscosity indicators have their own classification, according to SAE standards. This classification has been in the works for over a century. Since the time when manufacturers began to make different car oils with different properties and composition.

The SAE oil viscosity indexes have their own classification according to SAE standards.

According to SAE standards, any motor oil has its own characteristics in low or high temperature operating conditions.

How to read the SAE markings:

• When the labelling has the letter W – it means that the oil is a winter oil;
• When there is only a number in the marking, the oil is intended for use in summer;
• The higher the number on the label, the higher will be the viscosity grade from 0 to 50;
• When the labelling contains a number with the letter symbol W and another number, it means that the oil is all-season.

Types of engine oils

If the car has undergone regular maintenance, according to the manufacturer's regulations, there is no need to change the oil before winter. There is a record in the service book about what oil was used during the maintenance. If synthetic or semi-synthetic, there will be no problems with operation of the motor in winter conditions. If mineral oil is poured – at low temperatures, its lubricating properties noticeably deteriorate. In frosty conditions, mineral oil has a hard time fulfilling its duties.

Machines with turbocharged engines require special attention in winter. Synthetic oils are almost always used for them.  The car's instruction manual contains information on engine oil, and there are other manufacturer's recommendations that should be followed.

Accordingly, it is recommended to use synthetic oils.

What else to check before winter

In addition to checking the oil and other fluids in the car, it's recommended to check the battery, starter and alternator before winter. It's best to have all your car's systems diagnosed at a service centre that uses diagnostic equipment that can quickly and accurately identify faults.

Preparing your car for the onset of frost is an essential part of its successful operation. You need to start preparing your car for the cold weather early to avoid potential breakdowns on the winter road.