Castrol Transmax 80W-90 GL 4 Gear Oil 500ml 3428688
Vehicle Compatibility
This product is a gear oil selected by specification. Use only where the manufacturer specifies SAE 80W-90 and API GL-4. Confirm the required viscosity and GL rating in your owner’s manual before topping up or servicing.
- For manual gearboxes requiring 80W-90 with API GL-4
- For compatible transaxles and driveline units specifying GL-4 gear oil
- Commonly used as a top-up where the correct GL rating and viscosity are required
Do not use if your vehicle specifies GL-5 or a dedicated OEM fluid, unless the manual confirms compatibility.
Specifications
| Brand | Castrol |
|---|---|
| Product | Castrol Transmax |
| Fluid Type | Gear Oil |
| Capacity | 0.5 L |
| SAE Viscosity Grade | 80W-90 |
| API Specification | GL-4 |
| SKU | 3428688 |
Features
- GL-4 gear oil formulated for compatible manual transmission and driveline applications
- SAE 80W-90 viscosity grade suited to vehicles specifying this multi-grade gear oil
- Helps support smooth operation when used to the correct GL rating and viscosity
- Convenient 500ml bottle for top-ups and workshop use
Why Buy From Us
- Local South African stock
- 12-month warranty (manufacturing defects)
- Spec-check support available if you share your make, model, and whether it’s gearbox or differential use
Trusted by thousands of South African drivers for quality and durability.
Installation & Maintenance Tips
- Confirm the correct GL rating and viscosity in your owner’s manual before use
- Always clean around the fill plug before opening to prevent contamination
- Fill to the manufacturer’s specified level (overfilling can cause leaks and foaming)
- If shifting feels notchy after a fluid change, re-check that GL-4 (not GL-5) was required
- Dispose of used oil responsibly at an approved recycling facility
Original: $3.39
-70%$3.39
$1.02
Description
Vehicle Compatibility
This product is a gear oil selected by specification. Use only where the manufacturer specifies SAE 80W-90 and API GL-4. Confirm the required viscosity and GL rating in your owner’s manual before topping up or servicing.
- For manual gearboxes requiring 80W-90 with API GL-4
- For compatible transaxles and driveline units specifying GL-4 gear oil
- Commonly used as a top-up where the correct GL rating and viscosity are required
Do not use if your vehicle specifies GL-5 or a dedicated OEM fluid, unless the manual confirms compatibility.
Specifications
| Brand | Castrol |
|---|---|
| Product | Castrol Transmax |
| Fluid Type | Gear Oil |
| Capacity | 0.5 L |
| SAE Viscosity Grade | 80W-90 |
| API Specification | GL-4 |
| SKU | 3428688 |
Features
- GL-4 gear oil formulated for compatible manual transmission and driveline applications
- SAE 80W-90 viscosity grade suited to vehicles specifying this multi-grade gear oil
- Helps support smooth operation when used to the correct GL rating and viscosity
- Convenient 500ml bottle for top-ups and workshop use
Why Buy From Us
- Local South African stock
- 12-month warranty (manufacturing defects)
- Spec-check support available if you share your make, model, and whether it’s gearbox or differential use
Trusted by thousands of South African drivers for quality and durability.
Installation & Maintenance Tips
- Confirm the correct GL rating and viscosity in your owner’s manual before use
- Always clean around the fill plug before opening to prevent contamination
- Fill to the manufacturer’s specified level (overfilling can cause leaks and foaming)
- If shifting feels notchy after a fluid change, re-check that GL-4 (not GL-5) was required
- Dispose of used oil responsibly at an approved recycling facility
