Oil change is one of the most important procedures in car maintenance, which affects its reliability, engine longevity, and comfort in operation. In this article, we will explain in detail why and when you need to change the oil, what types of oils exist, how to choose the right one, and what to pay attention to.

Why change the oil in a car?

Oil performs several key functions in the engine:

  • Lubrication of moving parts, reducing friction and wear;
  • Engine cooling by dissipating heat;
  • Cleaning from wear products and contaminants;
  • Protection against corrosion;
  • Sealing between the piston and cylinder.

Over time, oil loses its properties: it becomes contaminated, thickens, and loses its ability to lubricate and cool effectively. This leads to increased engine wear, loss of power, higher fuel consumption, and even breakdowns.

How to check if an oil change is needed?

  • Change in oil color — it becomes dark and cloudy;
  • Smell of burnt oil;
  • Lower oil level on the dipstick;
  • Increased fuel consumption;
  • Appearance of unusual noises or knocking in the engine.

If you notice any of these signs, you should check the oil condition as soon as possible and replace it if necessary.

What oils are changed?

  1. Engine oil — the primary oil used for engine lubrication. Types include:
    • Mineral — basic, inexpensive, suitable for older engines;
    • Semi-synthetic — improved characteristics, popular option;
    • Synthetic — high-quality oil with the best performance properties.
  2. Transmission oil — lubricates the gearbox, available for manual and automatic transmissions.
  3. Power steering fluid — ensures smooth steering operation.
  4. Oil in differentials and axles — for lubricating gears and shafts.

Масло авто Львів

When to change the oil?

Recommended change intervals depend on the type of oil, operating conditions, and car manufacturer’s recommendations. Usually:

  • Mineral oil — every 5-7 thousand km;
  • Semi-synthetic — every 7-10 thousand km;
  • Synthetic — every 10-15 thousand km or 1 year (whichever comes first).

Consider operating conditions: frequent short trips, driving in traffic jams, extreme temperatures, and dust — all these require more frequent oil changes.

The importance of choosing the right oil

  • Oil viscosity — choose according to the manufacturer’s recommendations (e.g., 5W-30, 10W-40).
  • API and ACEA quality classes — guarantee the oil meets international standards.
  • Manufacturer — prefer trusted brands with certifications.

The role of the oil filter

When changing oil, always replace the oil filter. A quality filter traps contaminants and prevents particles from entering the engine, extending the life of both the oil and the engine.

Consequences of delaying an oil change

If oil is not changed in time, it may lead to:

  • Increased wear of engine parts;
  • Formation of deposits and sludge;
  • Engine overheating;
  • Loss of power and increased fuel consumption;
  • Costly repairs and part replacements.

How to properly dispose of used oil?

Used oil is a toxic substance that must not be poured into the soil or sewage. Always take it to special collection points or service centers that handle recycling and disposal.

DIY oil change: what you need to know?

Changing oil yourself is possible if you have experience and necessary equipment. However, it is important to follow all rules: use the correct oil and filter, carefully drain the old oil, dispose of it properly, and monitor the level after filling. If unsure, it’s better to consult professionals.

New technologies and oils

Modern cars require new-generation oils — with reduced sulfate ash content (low SAPS), energy-saving, specially designed for turbocharged and eco-friendly engines. Such oils provide better protection and comply with strict Euro 5 and Euro 6 standards.

Where to change oil in Lviv?

Autopark-Service service station in Lviv offers professional oil change services using quality oils and filters. Our specialists will help select the optimal option for your car, provide quality service and consultations.

Regular and timely oil changes are the key to a long and reliable engine life. Choose the right oil, replace filters, and turn to professionals for quality maintenance.

Schedule your oil change at Autopark-Service — we care about your car!