This symbol is shown on quality motor oils that meet current minimum industry requirements. The symbol is divided into three parts. The top half of the circle 2 indicates the API service rating, also called the performance level.
The center of the circle 3 denotes the SAE viscosity, which we just discussed. The lower half of the circle 4 indicates whether the oil has demonstrated certain resource conserving or energy-conserving properties. When motor oil was first introduced, it was sold only in monograde varieties, such as SAE-X.
Thus, a 0W oil will be able to flow faster and get to critical engine components better than a 5W or a 10W oil; especially in extreme cold conditions and at engine start-up.
The second number is the viscosity measurement value at engine operating conditions. In our shop, we advise erring on the side of caution when it comes to oil changes. We will do our best to give you the information you need to make good auto repair decisions for your driving habits. That is why we invite you to place your trust in the Mast Service Center team. We will visually inspect your vehicle for preparedness and let you know if we see any issues that will affect your vehicle.
Getting ahead of these issues is not just a good preventative measure, it is also investing in your peace of mind. Schedule an appointment today with the highly skilled auto mechanics at Mast Service Center.
Let us help you get the most out of your vehicle. We look forward to seeing you soon! Visit our guide to car maintenance and repair. There are a lot of misconceptions when it comes to keeping your car running smoothly.
Since , Consumer Reports has been testing products and working to create a fairer, safer, and healthier marketplace. Click here to learn more about Consumer Reports' mission as a nonprofit organization.
To help support our work, please consider making a tax-deductible donation. You can also show support by liking us on Facebook and following us on Twitter. We respect your privacy. All email addresses you provide will be used just for sending this story. By Consumer Reports. Updated March 29, Photo: iStock. When to Change the Oil. Make sure you get your oil change soon after you receive such an alert.
But when you fire up the ignition, it begins flowing through critical engine parts to protect against friction. Conventional and synthetic blend oils take more time until they are able to flow smoothly through the engine. During cold winter months, or if you live in an extremely cold environment, this flow process takes even longer.
Mobil 1 full synthetic oils are engineered to flow quickly even at low temperatures, and they start protecting your engine right after you start your vehicle.
When running, engines are hot. Over time, the high temperatures in your engine can cause conventional and synthetic blend oils to break down or evaporate, exposing your engine to wear. Automakers are building cars with smaller engines for greater fuel efficiency and turbochargers to boost power.
Turbocharged engines run even hotter than non-turbo engines. Conventional and synthetic blend oils can break down faster under extreme turbo conditions and leave deposits on turbocharger components, which can lead to failure. Mobil 1 full synthetic oils can protect these components much better than conventional oils, keeping them operating at peak performance and boosting engine power.
Yes, generally, synthetic oil can provide longer oil change intervals than conventional oil. But this is often dependent upon the brand of motor oil and several other factors, such as driving style and driving conditions. Please follow the recommendations in your owner's manual while your vehicle is under warranty. Some synthetic motor oil brands still recommend oil changes every 3, or 5, miles.
The Mobil 1 lineup includes full synthetic motor oils that support oil change intervals ranging from 7, miles, to 20, miles or one full year. While there are no firm industry definitions, full synthetic motor oils typically use the highest quality base oil combination as a starting point. Synthetic blend motor oils will typically be either a blend of high-quality and lower-quality conventional base oils or all high-quality higher than conventional base oils.
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