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Quick Guide On What The Numbers Mean On Oil - Oil Change Coupons Sales Disc Back to the top

Quick Guide On What The Numbers Mean On Oil

The 1st number (i.e. 5W) indicates the low-temperature viscosity - a measure of an oil's ability to flow and protect at certain temps. The lower the number, the easier the oil will flow (and protect) in cold weather when starting your car. The 2nd number (such as 30, in 5W-30), indicates the thickness of the oil at operating (high) temperatures. The higher the number, the better the lubrication will be. For more oil change FAQs, visit our website

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