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Description
Castrol Transmax 80W-90 GL 4 Gear Oil 500ml 3428688Vehicle 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 owners 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
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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
great shelves
Color: C. White - Modern Minimalist Style, Number Of Shelves: 3, Size: 36inches
These are a a great set of floating shelves! They were easy to install, feel sturdy, and look clean and modern on the wall. The set of three is perfect for displaying decor, photos, plants or small storage items while adding extra space without taking up room. Great quality, stylish, and a simple way to upgrade any space. They work perfect for my figurines to be displayed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Great shelves
Color: A. Black - Universal Classic Style, Number Of Shelves: 3, Size: 22.5inches
Easy to hang and look great in my office. I love the little divot along the edge. Helps to keep pictures from sliding.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Exactly what I needed for my bathroom refresh.
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches, Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
I bought these floating shelves in the color Rustic Brown to replace a bulky storage shelf that was making my bathroom feel cramped, and they completely transformed the space. The wood finish looks much more expensive than I expected, and once installed they gave the bathroom a clean, modern, spa-like feel without taking up visual space.
Installation was straightforward overall. I mounted one screw in the center into a stud and used drywall anchors for the remaining hardware, and the shelves feel very sturdy. They sit flush against the wall and don’t sag or wobble. I especially love how slim they are while still being deep enough to hold everyday bathroom items, decor, candles, skincare, and small baskets.
The color worked perfectly with my bathroom vanity and mirror trim, and the floating design instantly made the room look more organized and intentional. Huge upgrade for a small space.
Definitely recommend if you want functional storage that also looks elevated and minimalist.
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Reviewed in the United States on May 30, 2026
★★★★★ 4
Good Shelves
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 22.5inches
These shelves are really nice quality and look as advertised. The hardware included was great quality, metal drywall anchors and good screws. They were easy to install, and make even/level with each other. My only gripe is the price, but I'm very satisfied with the product overall.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Attractive, easy to install, nicely equipped hardware package.
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
These are pretty doggone nice shelves and I appreciate the fact that they are not made of solid particle board. Yes they are made of an engineered product, but they are lightweight and strong…and look better than particle board products and more costly than their actual price.
Easy installation system with the bracket…not fussy like some are.
An especially thoughtful touch is the variety of hardware that is included. Also a tiny level for use when installing them. What? …So they can be installed correctly? I was pleasantly surprised by this inclusion.
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Reviewed in the United States on May 29, 2026