TriShield is a unique triple-action technology that attracts， captures and disperses particles that can build up in engines and causes sludge build-up. TriShield stops small particles from becoming big problems， and protects the car you rely on. This innovative technology uses a polymer that contains two chemical hooks that attract and capture both sludge and soot in a single molecule， helping to prevent particles from building up. With TriShield Technology， Castrol has improved the potency and protection that GTX provides.
- Unique TriShield technology actively protects against particles that build up in car engines with the most advanced sludge-fighting ingredients
- Castrol GTX uses premium， custom-made additives and is the most advanced conventional oil available
- Maximum protection against viscosity and thermal breakdown
- Extreme detergency action helps prevent deposits
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