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Q: What do the numbers on the oil mean and does it really matter which one I use? - Christine
A: Hi Christine,
Most people probably arent familiar with the different types of oil. The first number (such as 5W) indicates the low-temperature viscosity, or, the measure of the oil's ability to flow and protect at certain temperatures. The lower the number, the easier the oil flows in cold weather. The second number (such as 30) indicates the thickness of the oil at high temperatures. The higher the number the better the lubrication will be. When changing your oil, you should always follow the manufacturer's recommendation on the type of oil used, or you can bring it to Tire Pros of Frederick and we can take care of it for you!
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