The oil in your vehicle’s engine is pretty incredible. Its job is to protect every square inch inside your engine where there is metal-to-metal contact – your piston rings, cylinder walls, valves, ...
Frances E. Lockwood is in charge of product development for the Valvoline division of Ashland Inc., headquartered here. That makes her a rarity. Valvoline makes motor oils, grease and other lubricants ...
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