Castrol® GTX® 5W-20 is a synthetic blend motor oil with a double-action formula proven to clean away the sludge that can block engine oilways* and help prevent new sludge formation. Sludge is a thick, tar like substance caused by severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals. Sludge can block your engine's vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life. * When tested in engines with a high level of sludge
- Premium-quality base oils and anti-wear additives that help extend engine life
- Superior protection against engine sludge
- Advanced protection against viscosity and thermal breakdown
- Superior protection against high-temperature deposits
- Meets or exceeds the following specifications:
- API SP/SN PLUS/SN/SM
- ILSAC GF-6
- Meets Ford WSS-M2C945-B1
- Meets Ford WSS-M2C960-A1
