In order for motor oil to perform its major function – lubrication – its viscosity (the measures of its thickness or resistance to flow) must be capable of holding up under extreme temperature conditions.
Oil thins when heated and thickens when cooled. A grading system like this is used: ‘XXW-XX’, with the first part eg. ‘10W’ indicating the oil’s viscous characteristics at cold temperature and the second part eg. ‘40’ indicating those at operating temperature.
Oils which only display a single viscosity grade of 30, 40, or 50 are known as a monograde. Monogrades must be replaced seasonally (winter and summer) to ensure appropriate viscosity, therefore the majority of engine oils are multigrade.
Mineral and synthetic base oils are mostly derived from crude oil or its refined components. Mineral base oils are produced during the normal crude oil refining process and are enhanced with chemical additives. Some synthetic base oils are produced by further refining and chemically altering these mineral base oils. Other types of synthetic base oils are made by using special refinery products to tailor-make specific and unique molecules.
Castrol Magnatec is a semi-synthetic engine oil.
Castrol Magnatec is designed to mix completely with other synthetic, part synthetic or mineral lubricants. Not only is it perfectly okay to top up your vehicle with Castrol Magnatec, you will begin to benefit straight away from the protection of its Intelligent Molecules which reduce the engine wear that would occur with inferior oils. To reap the full benefits of Castrol Magnatec, a complete change of oil is recommended.
Synthetic engine oils are able to:
Castrol Magnatec is a semi-synthetic engine oil.
Almost all engines need about 15 to 20 minutes of operation for the lubricant to reach optimum operating temperature, at which point the harmful by-products of combustion are mostly blown out of the exhaust system.
Harmful by-products (e.g. water and unburnt fuel) can lead to severe damage of the lubricant and the engine. They can also lead to the creation of sludge. The quality base oils and additive systems of Castrol minimises the effects of harmful by-products and in turn, reduce and improve cleanliness and life.
All grades of Castrol Magnatec are qualified for diesel as well as petrol cars, however to get the most from your diesel car you should rely on the dedicated diesel technology in Castrol Magnatec Diesel.
The API (American Petroleum Institute) Service rating is an American based, two-letter classification that identifies the performance level of the motor oil and the year model of vehicle which it is suited for.
The current API SN classification was adopted in 2010. If an owner’s manual calls for API SJ, SL or SN oil, API SN oil will provide superior protection.
It is a European-based grading system to classify the quality and performance properties of engine oil. Oils are divided into the following two categories:
Castrol Magnatec is designed to keep your car at its peak throughout the entire length of your car’s standard drain interval. We recommend you stick to the service interval as documented in the manufacturer’s vehicle handbook.
Yes, there is no age or mileage restriction for using Castrol Magnatec. Both older cars and new cars benefit in the same way from the protection offered. If possible, refer to your vehicle handbook for viscosity recommendations.
We would not recommend using Castrol Magnatec in your bike. Castrol have a specialist range of Motorcycle oils engineered with Trizone TechnologyTM which offer unbeatable protection of your bike’s, engine, gearbox and clutch.