Castrol
Castrol GTX Ultraclean 5W-30 1 qt 06144
A synthetic-blend 5W-30 engine oil meeting API SN and ILSAC GF-5 standards for gasoline engines
- Synthetic blend protects gasoline engines with API SN/SJ/SL/SM approval
- Viscosity index 146 maintains film strength across temperature extremes
- Meets Chrysler MS-6395 and ILSAC GF-5 standards for modern engines
- Low pour point -38.2 °F ensures cold-start flow in winter
- High flash point 438.8 °F adds safety margin under heat
Castrol GTX Ultraclean 5W-30 Synthetic Blend
This Castrol GTX Ultraclean engine oil uses a synthetic blend formulation in a 1 qt bottle. It carries a 5W-30 SAE viscosity grade suitable for gasoline engines. The product meets API SN, SJ, SL and SM standards along with Chrysler MS-6395 and ILSAC GF-3, GF-4 and GF-5 specifications.
Upgrade from conventional 5W-30 oils
Switching to this synthetic blend improves deposit control compared to conventional petroleum oils of the same viscosity. The jump is worth it when an engine requires ILSAC GF-5 performance or Chrysler MS-6395 approval for warranty compliance. It replaces older GF-3 or GF-4 fluids where newer standards are now specified.
Sustained protection under high temperatures
The oil maintains a viscosity of 10.5 cSt at 100 Deg C and 66.4 cSt at 40 Deg C with a viscosity index of 146. A flash point of 438.8 Deg F and pour point of -38.2 Deg F indicate stable flow across a wide temperature range. These properties help the fluid resist thinning during extended high-load operation.
Highlights
- Synthetic blend protects gasoline engines with API SN/SJ/SL/SM approval
- Viscosity index 146 maintains film strength across temperature extremes
- Meets Chrysler MS-6395 and ILSAC GF-5 standards for modern engines
- Low pour point -38.2 °F ensures cold-start flow in winter
- High flash point 438.8 °F adds safety margin under heat
Specifications
| Brand | CASTROL |
|---|
Questions about this item
What engine type does the 5W-30 viscosity grade suit?
The 5W-30 SAE grade is compatible with gasoline engines as specified by the manufacturer.
How do I install the oil using the 1 qt bottle, and what step is often missed?
Pour the full 1 qt container into the engine filler neck, then verify the level with the dipstick to avoid overfilling.
When should the GTX Ultraclean synthetic blend be replaced based on its specifications?
The oil meets API SN and ILSAC GF-5 standards, so follow the vehicle manufacturer's drain interval for those specifications.
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