STURDY MINERAL PREMIUM 15W-40 is a multi-grade diesel engine oil manufactured from carefully selected base oils and the very latest additive technology. It meets many engine builder requirements and specifications. Superior dispersant additives help maintain engine cleanliness in the latest diesel engines and the latest detergent additives help reduce unwanted deposits in turbochargers and on pistons. STURDY 15W-40 is suitable for normally aspirated and turbocharged highly stressed diesel engines in the passenger cars and heavy commercials, vans, plant, buses and industrial equipment.

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