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CASTROL GTX HIGH MILEAGE is the premium engine oil for engines with over 75,000 miles. As
your engine ages, its performance decreases and oil breaks down faster. Over time, seals deteriorate,
gaskets become brittle and oil consumption increases, leading to reduced performance.
CASTROL GTX HIGH MILEAGE combats this aging process and helps extend the life of your engine.
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MAXIMUM PROTECTION AGAINST VISCOSITY AND THERMAL BREAKDOWNâ„¢
Castrol GTX, with its unique shear stable viscosity improvers, exceeds demanding U.S. high shear and
stay-in-grade requirements for viscosity breakdown protection. Rapid acceleration, sudden stops and highrevving
all push your engine to work harder and run hotter. The extreme stress and searing heat generated
from this hard driving can shear and volatilize oil, leading to viscosity and thermal breakdown.
| Parent Petroleum Co. | Parent Petroleum Co. | |
|---|---|---|
| Product Category | Petroleum and Mineral Oil Products | Petroleum and Mineral Oil Products |
| Product Number | 75 | 75 |
| Product Name | GTX High Mileage 5W30 | GTX 5W20 |
| Composition / Chemistry | Synthetic or Semi-synthetic; Petroleum or Mineral Oil | Petroleum or Mineral Oil |