Look for the API "Service" symbol on the label; codes like SN or SP indicate the oil meets the latest benchmarks for gasoline engines, ensuring it provides the necessary protection for today's advanced emission control systems. Modern oils are formulated to meet specific performance standards set by organizations like the API (American Petroleum Institute) and ACEA.
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It offers exceptional resistance to heat breakdown and maintains viscosity better than its mineral counterpart. Performance Standards and Additives Beyond the base oil, the additives included determine much of the oil's protective capabilities.
Making the Sustainable Choice. Decoding Viscosity: The Meaning of Numbers What the Viscosity Grade Represents Viscosity is the oil's resistance to flow, and it is the number labeled on the container, such as 5W-30 or 10W-40.
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Always refer to your vehicle's owner manual for the manufacturer's recommended specification, as deviating too far can lead to performance issues or damage. In hotter environments or in high-mileage engines with looser tolerances, a higher-viscosity oil such as 10W-40 or 15W-50 may be necessary to maintain a sufficient oil film strength to prevent metal-to-metal contact.
More About What type of oil
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