Product: Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil (1-Quart, Case of 6)
Brand: Shell Rotella
Conventional 15W-40 diesel engine oil with Triple Protection technology protects against wear, deposits, and oil breakdown
Formulated with advanced additive technology for enhanced deposit control and superior engine cleanliness throughout the oil drain interval
Enhanced protection against oil oxidation for more efficient operation
Increased shear stability for better viscosity control and optimal engine oil pressure
Wear control helps keep moving metal engine surfaces apart for a longer life

Search query: royal purple 15w40 diesel oil synthetic
Relevance: Substitute