Motor Oil Types, Weights & Viscosity FAQs
Learn about motor oil types, weights and viscosity from Valvoline. Find out if thicker oil is better, switching motor oil weights, the "W" in oil grades and more.
The original high mileage motor oil is a synthetic blend formula with seal conditioners to reduce oil consumption and oil leaks in engines with over 75,000 miles.
The Original Motor Oil
America's First Motor Oil Brand
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