Choosing motor oil can be a challenging task, especially given the numerous types and classifications on the market. Choosing the right oil is key to ensuring long-lasting and reliable operation of your engine. In this guide, we’ll cover the key factors to help you make an informed choice.
Step 1: Review the manufacturer’s recommendations
Before choosing motor oil, first consult your vehicle’s owner’s manual. It lists the specifications, viscosity, and quality requirements. By following these recommendations, you can avoid many problems associated with choosing the wrong oil.
Step 2: Understand the classification of oils
Motor oils are divided into three main types:
- Mineral oils: Derived from natural petroleum products. More commonly used in older vehicles and transmission oils, these oils offer stable, but limited, protection in some areas.
- Semi-synthetic oils: A blend of mineral and synthetic components. They provide a good balance between price and quality and are ideal for most modern vehicles.
- Synthetic oils: Formulated with synthetic components, they offer high stability and protective properties, making them ideal for high-performance engines.
Step 3: Pay attention to viscosity
Oil viscosity is designated by two numbers, such as 5W-30 or 0W-40. The first number (e.g., 0W) indicates the oil’s properties at low temperatures, while the second indicates its properties at high temperatures. The lower the first number, the better the oil’s cold starting properties. Oils labeled “0W” or “5W” are ideal for winter conditions, but the choice should be made strictly according to operating conditions.
Step 4: Study the specifications
When choosing an oil, also pay attention to its specifications, such as API, ACEA, and ILSAC. These designations indicate the oil’s quality level and its compliance with international standards. The higher the oil’s category, the better its protective properties.
Step 5: Consider Operating Conditions
Your operating conditions also influence your oil selection. If you frequently drive in city traffic or in harsh climates, choose oils with enhanced performance characteristics that provide protection against wear and oxidation.

Step 6: Consult a specialist
If you’re unsure about your choice, don’t hesitate to consult with specialists at a store or service center. They’ll help you choose the right oil based on your engine’s condition and operating conditions.
Step 7: Test and Change Regularly
After selecting and changing oil, monitor its condition. Regularly check the oil level and color, and monitor consumption rates. Remember to change the oil according to the manufacturer’s recommendations to keep your engine in top condition.
Conclusion
Choosing motor oil isn’t just a formality; it’s a crucial task that requires careful consideration. By following this step-by-step guide, you’ll be able to find the optimal oil for your vehicle.