Description
Castrol GTX High Mileage 5W-30 is a premium part synthetic motor oil formulated for vehicles with more than 75,000 miles (about 120,000 km), according to Castrol. It contains less phosphorus than other leading oils to help prevent catalytic converter and emission system failure, and includes seal conditioners to help reduce leaks.
According to the Safety Data Sheet, the product is not classified as hazardous under the GHS. Read the Safety Data Sheet before use. Sold per 1 L bottle; an environmental handling fee applies.
Features
- Part synthetic oil for high-mileage vehicles
- Helps prevent catalytic converter and emission system failure
- Superior dispersancy against sludge build-up
- Exceptional oil burn-off protection, per Castrol
- Seal conditioners to help reduce leaks
Specifications
| Brand | Castrol |
|---|---|
| Manufacturer part number (MPN) | 0001638 |
| Big Papa SKU | BP-G-CAS-0001638 |
| Viscosity grade | SAE 5W-30 |
| Industry specifications | API SQ, ILSAC GF-7 |
| Other requirements stated by Castrol | Ford WSS-M2C961-A1; Chrysler MS-6395 engine test performance |
| Kinematic viscosity at 40 °C | 61 mm2/s |
| Kinematic viscosity at 100 °C | 10.1 mm2/s |
| Viscosity index | 155 |
| Pour point | -42 °C |
| Flash point (PMCC) | 205 °C |
| Density at 15 °C | 0.854 g/mL |
| Format | 1 L bottle |
| Data sheet (PDS) | February 2026 |
| SDS revision | September 2026 |
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