Castrol EDGE 5W-30 Full Synthetic Motor Oil, 5 Quart — Advanced wear protection & high‑temp stability

Castrol EDGE 5W-30 is a premium full synthetic motor oil engineered to deliver superior wear protection, consistent viscosity, and thermal stability for modern gasoline engines.

Designed for drivers who expect peak performance and long service intervals, Castrol EDGE 5W-30 combines advanced additives and a robust base oil to protect engines under high stress, high temperature, and extended mileage conditions. It meets or exceeds major industry specifications and manufacturer approvals, making it suitable for many late-model vehicles that call for a 5W-30 synthetic oil.

How does this oil help protect my engine during hard driving?

Castrol EDGE 5W-30 uses a tightened film strength formulation that resists breakdown under load, reducing metal-to-metal contact and wear during heavy acceleration or towing. The oil maintains protective viscosity at elevated temperatures so components stay lubricated when engines are pushed hard.

• 3X stronger against viscosity breakdown compared with leading synthetics*
• 10X better high-stress performance in torque/load tests**
• Formulated for high-temperature stability to limit wear

Can this oil extend the time between oil changes?

Castrol EDGE 5W-30 is engineered for extended drain capability, supporting longer service intervals when used according to manufacturer recommendations and driving conditions. It helps control sludge and deposit formation so oil life is preserved across distance and time.

• Supports up to 20,000 miles or one year between changes*** under qualifying conditions
• Enhanced sludge control to maintain cleanliness
• Stable performance across long operating periods

Which cars and specifications is this oil compatible with?

This formulation meets multiple industry and OEM specifications, making it compatible with a wide range of modern gasoline engines that specify a 5W-30 full synthetic. Always check your owner’s manual to confirm the correct oil grade and approvals for your vehicle.

• Exceeds API SQ/SP/SN PLUS/SN and ILSAC GF-7
• Approved for GM dexos1 Gen 3
• Meets test requirements for Chrysler MS 6395 and Ford WSS-M2C946-B1 / WSS-M2C961-A1

What performance improvements can I expect in everyday driving?

Drivers typically notice more consistent engine responsiveness, stable oil pressure across temperatures, and reduced engine noise as components remain better protected. The formulation aims to support improved fuel efficiency and reliable start-up protection in cooler conditions thanks to its 5W cold-flow rating.

• Helps maintain fuel economy by controlling viscosity
• Improved cold-start flow for immediate protection
• Reduced deposit and sludge formation for smoother operation

Who is this for: Castrol EDGE 5W-30 is aimed at drivers of modern gasoline vehicles who want high-level protection during spirited driving, towing, or extended oil-change intervals, and who require an oil that meets contemporary OEM and industry specifications. If your vehicle’s manual calls for a 5W-30 full synthetic or for any of the listed approvals, this product delivers a balanced mix of wear protection, thermal resilience, and long-life performance.

*Viscosity breakdown measured in Kurt Orbahn test on 5W-30 grade. **Measured in Seq IX test under high load/torque conditions vs. API SQ test limits. ***Or one year, whichever comes first. See vehicle manufacturer guidance for recommended change intervals and compatibility.