Castrol GTX Full Synthetic 5W-20 Motor Oil
Full Synthetic SAE 5W-20 Engine Oil for Sludge, Wear, and High-Temperature Protection
Castrol GTX Full Synthetic 5W-20 is a full synthetic motor oil formulated to help protect engines from sludge, wear, oxidation, and viscosity breakdown. It is designed for vehicles that require an SAE 5W-20 engine oil and should be selected according to the viscosity grade and performance specifications listed in the vehicle owner's manual.
Castrol positions the GTX Full Synthetic line for newer cars and for operating conditions that can contribute to sludge formation, including heat, short trips, and stop-and-go traffic. The full synthetic formulation provides thermal and oxidation stability while helping the oil maintain its viscosity during service.
Castrol also reports enhanced sludge and wear protection based on its cited industry test procedures.
Key Benefits
- Full synthetic SAE 5W-20 motor oil
- Helps clean existing sludge and protect against new sludge formation
- Formulated to reduce engine wear
- Provides thermal and oxidation stability
- Helps protect against viscosity breakdown
- Suitable for vehicles requiring applicable SAE 5W-20 specifications
- API SQ performance claim
- ILSAC GF-7 performance claim
- Meets Ford WSS-M2C945-B1
- Meets Ford WSS-M2C960-A1
Applications
Castrol GTX Full Synthetic 5W-20 is intended for automotive engine applications that specify an SAE 5W-20 lubricant with the required performance standards.
Always check the vehicle owner's manual before use. The correct engine oil should match the manufacturer's required viscosity grade, API or ILSAC category, and any applicable OEM specification.
Performance Claims and Specifications
- SAE Viscosity Grade: 5W-20
- API: SQ
- ILSAC: GF-7
- Ford: WSS-M2C945-B1
- Ford: WSS-M2C960-A1
Typical Characteristics
- Density at 15°C: 0.850 g/mL
- Kinematic Viscosity at 40°C: 49 mm²/s
- Kinematic Viscosity at 100°C: 8.62 mm²/s
- Viscosity Index: 153
- CCS Viscosity at -30°C: 4,500 mPa·s
- Pour Point: -42°C
- Flash Point, PMCC: 200°C
- Sulfated Ash: 0.7% by weight
Typical values are provided as a guide and may vary within normal manufacturing tolerances.
Frequently Asked Questions
What is Castrol GTX Full Synthetic 5W-20 used for?
Castrol GTX Full Synthetic 5W-20 is an automotive motor oil for vehicles requiring an SAE 5W-20 viscosity grade and compatible performance specifications. Always confirm the required oil grade in the owner's manual.
Is Castrol GTX 5W-20 fully synthetic?
Yes. This product is part of the Castrol GTX Full Synthetic motor oil range.
Does Castrol GTX Full Synthetic 5W-20 meet API SQ?
Yes. The current Castrol product data sheet lists API SQ as a product performance claim.
Does Castrol GTX Full Synthetic 5W-20 meet ILSAC GF-7?
Yes. Castrol lists ILSAC GF-7 among the product's current performance claims.
What Ford specifications does Castrol GTX Full Synthetic 5W-20 meet?
The current Castrol data sheet states that GTX Full Synthetic 5W-20 meets Ford WSS-M2C945-B1 and Ford WSS-M2C960-A1.
Does Castrol GTX Full Synthetic 5W-20 help prevent sludge?
Castrol states that the GTX Full Synthetic range helps clean existing sludge and protect against new sludge formation. Heat, short trips, and traffic are among the operating conditions Castrol identifies as contributors to sludge formation.
Is Castrol GTX Full Synthetic 5W-20 good for stop-and-go driving?
Castrol specifically identifies short trips, traffic, and heat as conditions that can contribute to sludge. GTX Full Synthetic is formulated to provide sludge protection along with thermal and oxidation stability.
What is the viscosity of Castrol GTX Full Synthetic 5W-20?
The typical kinematic viscosity is 49 mm²/s at 40°C and 8.62 mm²/s at 100°C. The listed viscosity index is 153.
What is the pour point of Castrol GTX Full Synthetic 5W-20?
The typical pour point is -42°C according to the Castrol product data sheet.
Can I use Castrol GTX 5W-20 instead of another viscosity grade?
Use SAE 5W-20 only when that viscosity grade is specified or permitted by the vehicle manufacturer. Do not substitute viscosity grades solely based on brand or product family.
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