What does 10W30 engine oil mean? How is it different than 5W30 oil?

What does the 10W30 designation on engine oil mean, and how does it affect equipment? We answer these questions and more in this article.

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Pennzoil Engine Oil, 10W-30, Pennzoil, 5 Qt. 550045214

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Pennzoil High Mileage SAE 10W-30 Motor Oil is engineered for cars that have accumulated more than 75,000 miles, particularly those that are

High Mileage SAE 10W-30 Synthetic Blend Motor Oil 1 Qt.