Frequently Asked Questions about Motor Oil"

What type of motor oil do I need?

In the main menu, you can click on 'Oil Advice.' Then, select the desired brand to be redirected to the manufacturer's website. You can enter your license plate or select your vehicle type for specific advice.

How do I know which motor oil is approved by the car manufacturer?

The correct motor oil for your car will be specified in your vehicle's manual. Industry standards set by the American Petroleum Institute (API) and European Automobile Manufacturers Association (ACEA) outline the specifications for motor oils. Some car manufacturers have specific requirements. To maintain your car's warranty, it's essential to follow the manufacturer's guidelines, which you can find in your vehicle's manual. The specifications are also listed on the back of the oil bottle. Choosing the right motor oil that meets your car's specifications is crucial.

What does motor oil do in your engine?

Motor oil protects every internal component of your engine. It minimizes friction between parts during operation, preventing damage even under high pressure and speed. Motor oil contains special additives that prevent the buildup of debris and oxidation at high temperatures, ensuring smooth flow.

How can I check my car's oil level?

  1. Place the car on a flat surface.
  2. Turn off the engine.
  3. Wait for about 2 minutes to let the oil settle back into the oil pan.
  4. a) Traditional dipstick method:
    • Remove the dipstick from the engine.
    • Clean the bottom part with the markings thoroughly.
    • Insert the dipstick back into the holder without screwing it in. Ensure it's fully inserted.
    • Pull out the dipstick for an accurate measurement.
    • Check the oil level. If it's correct, reinsert the dipstick fully.
  1. b) Digital display method (for vehicles without a dipstick):
  • Turn on the ignition with the key or the start button.
  • Check the oil level on the digital display.

How do I top up oil?

  1. Select oil suitable for your car's engine.
  2. Use a funnel or a pouring spout to prevent spillage.
  3. Keep a clean cloth or paper towels nearby.
  4. If the oil level is low (around or just above the minimum mark on the dipstick), add small quantities of oil, such as a quarter of a liter, carefully.
  5. If the dipstick doesn't clearly indicate the required amount, add even smaller quantities until reaching the correct level.
  6. Always recheck the oil level until it reaches the right amount.
  7. Note: Typically, the difference between the minimum and maximum levels is about a liter. Do not overfill above the maximum level. Excess oil on the engine can cause smoke and odor. Clean any spilled oil to prevent issues.

Is it normal for motor oil to need topping up?

Yes, it's normal for a car to consume a small amount of oil during the combustion process. Regularly checking the oil level is recommended to prevent engine damage. However, frequent top-ups do not eliminate the need for regular oil changes.

Can I switch to a different viscosity during an oil change?

Yes, it's possible if the car manufacturer specifies multiple viscosities for your engine. Depending on the climate (hot or cold) and driving habits (sporty or economical), you can switch to a different viscosity. Refer to your car's manual or our oil advice page for the correct viscosity.

Can I use the same oil for both the engine and gearbox?

Usually, the engine and gearbox have separate lubrication systems. They require different viscosities and additives, so they need different products. In older cars, there might be exceptions where the engine oil also lubricates the gearbox. Refer to your vehicle's manual or our oil advice page for the prescribed engine and gearbox oils.

Can I use diesel engine oil for a gasoline engine and vice versa?

Not always. If the ACEA/API oil specification is prescribed for both gasoline and diesel engines, the oil can be used in both types. Verify the correct ACEA/API oil specification for the specific gasoline and diesel engines before selecting an oil type. The letter 'S' stands for gasoline, and 'C' stands for diesel in API specifications.

How are oil performance levels evaluated?

Oil performance is determined by ACEA and API specifications. However, these are minimum requirements. A motor oil can significantly exceed these minimum standards. Most manufacturers also set their own specific requirements beyond these general ones.

Does a diesel engine require special oil?

Yes, oil for diesel engines focuses more on shear stability due to the relatively high torque at low speeds. Additionally, diesel engine oil should absorb soot from the exhaust gas recirculation (EGR) system. For diesel engines with diesel particulate filters (DPF), 'Low SAPS' (Low Sulphated Ash, Phosphorus, Sulphur) oil is needed to prevent clogging and extend the DPF's lifespan.

What does the ACEA specification on a packaging mean?

The ACEA (European Automobile Manufacturers Association) standard indicates the oil's type and performance level. The letter represents the engine type: A for gasoline, B for diesel passenger cars, C for light-duty engines with catalytic converters or particulate filters, and E for commercial vehicles and trucks. The number denotes specific performance levels.

What does the API specification on a packaging mean?

Established by the American Petroleum Institute, the API specification classifies products based on various criteria: dispersant ability, anti-wear protection, oxidation resistance, corrosion protection, and detergency. The standard consists of two letters: 'S' for gasoline engines and 'C' for diesel engines. The second letter indicates the oil's performance level, with higher letters indicating better quality.

Can I use automotive oil for a motorcycle engine?

No, motorcycles can have both two-stroke and four-stroke engines, while cars generally have four-stroke engines (except for some very old ones). Motorcycle engines are relatively small but can deliver high power compared to car engines. Some motorcycles have gearboxes and wet plate clutches lubricated by the same motor oil, while others have separate gearbox oil.

Why shouldn't I just buy the cheapest oil?

In many cases, the price of the oil doesn't necessarily reflect its suitability. A car engine is a complex machine, and the car manufacturer specifies the requirements for the lubricant. If the lubricant needs to meet high or numerous specifications, the price generally increases because high-quality oil and advanced additives are necessary. While cheap oil might be sufficient in some cases, it often doesn't meet the required specifications.