Shell Rotella T4 Triple Protection 15W40 Diesel Oil delivers tough, adaptable protection for modern low-emission and older diesel engines. Backed by millions of miles of testing, this synthetic blend formula helps prevent wear, oxidation, and oil breakdown under the toughest conditions while meeting CK-4 specifications.

• Protects against wear, deposits, and oil breakdown under high heat
• Improves viscosity control and oil aeration for better emissions performance
• Extends engine life with superior wear resistance
• Keeps engines cleaner through the full oil drain interval