Does your car need a synthetic blend engine oil? Somewhere between conventional and full synthetics, they’re a popular and economical choice.
What is part synthetic oil? Also known as Semi Synthetic or Synthetic Blend engine oil, these motor oils provide a balance between the economy offered by conventional oil and the superior performance of full synthetic oil.
Among the leading part synthetic oils you can choose between are Castrol Magnatec, which provides superior protection against the build-up of sludge, and Castrol Magnatec Diesel, which is engineered for vehicles with over 75,000 miles on the odometer, but that don't require a full synthetic.
Up to 75% of engine wear takes place in the first 20 minutes after your engine starts. That's why Castrol Magnatec is liquid engineered with intelligent molecules that cling to engine components and form a protective layer from the moment you start the engine, to dramatically reduce engine wear.