Fully-synthetic oils

Full synthetic oils provide the best possible protection for your engine and provide optimal protection right from the moment the vehicle is started. The motor oil is effective for engines operating in extreme temperatures, during heavy towing, and in stop-start traffic.

Depending on the viscosity of the motor oil recommended in the owner manual for your car, full synthetic oil can also improve your vehicle’s performance and fuel economy, and will even remain stronger between oil change intervals than traditional mineral-based or semi-synthetic oils.

Advantages of full synthetic motor oils:

• Long service life. You don't need to change the motor oil as often.
• Good lubricating properties. The engine is subject to less wear.
• High viscosity index. The oil retains its good lubricating properties at both high and low temperatures.
• Resistant to high temperatures. Beneficial for turbo engines, for example.

Frequently asked questions about fully synthetic oils

What do the numbers and the W stand for?

The viscosity of an oil is measured by its flow resistance. There are two numbers that define the viscosity of an oil. The number ending with the letter W (winter) relates to how an oil flows when it is cold, like when starting the engine. The second number describes how an oil flows at the engine’s normal operating temperatures.

Which oil is thickest, 5W-30 or 10W-40?

The lower the number, the easier it will flow. So 5W-30 flows more easily than 10W-40 at lower temperatures, like when starting the engine. And a 10W-30 flows more easily than 10W-40 at the normal operating temperature of the engine. Oils naturally thicken when it gets colder and become more fluid at higher temperatures.

Which viscosity is best?

You should always check your car’s physical or digital manual to find out which viscosity grade is suitable for your car. Thin viscosity oils protect engine parts at lower temperatures, and thick high viscosity oils protect the engine more effectively at higher temperatures.

Can I mix different motor oils?

Modern motor oils such as full synthetic, semi-synthetic, and mineral oils can normally be mixed with each other, regardless of type. But be aware that each type of oil has its own additive that gives it specific properties, and these properties can change when mixed. Therefore, it is always preferable to do an oil service and ask your workshop which motor oil was used during the oil change.

Before you buy new motor oil, you should check what your car’s manufacturer recommends. This information can be found in the car’s physical or digital manual. Among other things, the manual will state the oil type and viscosity grade you should use and which specifications the oil should conform to.

If you are unsure, we advise you to talk to your workshop or a member of staff in our stores.