Drivers and mechanics have trusted Castrol GTX for over 50 years to help extend engine life.

Castrol GTX’s 3X-Clean formula has been developed to fight the three main causes of engine sludge: heat, contaminants and short trips. By cleaning away existing sludge and creating a barrier that helps stop deposits from forming, Castrol GTX keeps engines cleaner for longer, 35% cleaner than industry standards.* This means drivers and their vehicles enjoy more years together.

Castrol GTX: Helps extend engine life

Castrol GTX 5W-30 C3 is suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA C3, API SP or earlier specification 5W-30 lubricant.

The Castrol GTX range:

• Delivers superior protection against sludge* caused by pollutants, heat and frequent short trips.
• Provides advanced protection against viscosity and thermal breakdown.
• Demonstrates exceptional protection against high-temperature deposits
• Contains premium synthetic technology base oils and anti-wear additives

*Weighted average benefit of 81% of GTX 2021 global sales volume in Seq VG or VH industry sludge test, compared to specification claimed on pack.

Density @ 15C, Relative ASTM D4052 g/ml 0.851
Viscosity, Kinematic 100C ASTM D445 mm2/s 12.0
Viscosity, CCS -30C (5W) ASTM D5293 mPa.s (cP) 5750
Viscosity, Kinematic 40C ASTM D445 mm2/s 69
Viscosity Index ASTM D2270 None 173
Pour Point ASTM D97 °C -42
Flash Point, PMCC ASTM D93 °C 196
Ash, Sulphated ASTM D874 % wt 0.71

Product Performance Claims

ACEA C3

API SP

BMW Longlife-04

MB-Approval 229.31/ 229.51

OPEL OV 040 1547 – D30/ OV 040 1547 – G30

Porsche C30

Renault RN0700 / RN0710

VW 504 00/ 507 00

All packages should be stored under cover. Where outside storage is unavoidable drums should be laid horizontally to avoid the possible ingress of water and damage to drum markings. Products should not be stored above 60°C, or exposed to hot sun or freezing conditions.

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Material Safety Data Sheet

Product Data Sheet