






🛠️ Keep your high-mileage engine young, efficient, and leak-free with CastrolGTX!
CastrolGTX High Mileage 20W-50 Synthetic Blend Motor Oil is engineered for vehicles with over 75,000 miles, combining advanced phosphorus replacement technology, superior sludge-fighting dispersants, and seal conditioners to extend engine life, reduce leaks, and improve fuel economy—all while exceeding industry burn-off protection standards.










| Viscosity | 20W 50 sae_grade |
| Brand | Castrol |
| Vehicle Service Type | For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs |
| UPC | 079191231128 |
| Automotive Fit Type | Universal Fit |
| Global Trade Identification Number | 00079191231128 |
| Manufacturer | Castrol |
| Size | 5 Quarts |
| Model | 03112 |
| Item Weight | 9.54 pounds |
| Product Dimensions | 11.8 x 9.5 x 4.6 inches |
| Item model number | 1597C3 |
| Manufacturer Part Number | 1597C3 |
J**K
My vehicle works well with this type of oil!!
Great item!!
R**B
Competitive price.
Good value
L**F
Good
Good oil thanks
M**R
nice
excellent oil for my old Triumph TR7
L**C
Help for worn out oil pumps...
My very old car's check oil light lights because the oil pump is worn out & the service manager explained that it's buried deep in the engine, replacing requires slinging the engine & about a quarter of a major engine overhaul to replace it, $1,800 bucks. I normally use 10W-30, but this 20W-50 keeps the check oil light extinguished, so I'm using it... Next step is 10W-60 & then a trip to the finance company...Highly Recommended if you need it...
D**S
good price
always liked this brand
C**
Great item
Great item
J**A
exelente producto
Muy buena Calidad
Trustpilot
3 days ago
1 month ago