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⚙️ Shift smoother, drive smarter — the pro’s choice for manual transmissions!
Castrol Transmax Manual Transaxle Fluid 75W-90 is a fully synthetic transmission oil engineered with Smooth Drive Technology to deliver superior protection and smoother gear shifts, especially in cold conditions. Trusted by leading car manufacturers as factory fill, it meets key industry standards and offers enhanced transmission longevity and performance for passenger car manual transmissions.






| ASIN | B0C815FLCH |
| Best Sellers Rank | 3,184 in Automotive ( See Top 100 in Automotive ) 3 in Gear Oils |
| Brand | Castrol |
| Brand Name | Castrol |
| Container Type | Bottle |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.8 out of 5 stars 264 Reviews |
| Flash Point | 218 Degrees Celsius |
| Included Components | Transmission fluid |
| Item Form | Oil |
| Item Type Name | Transmission fluid |
| Item Weight | 911 Grams |
| Item weight | 911 Grams |
| Liquid Volume | 1 Litres |
| Liquid volume | 1 Litres |
| Manufacturer | Castrol |
| Material | Plastic |
| Model Number | Castrol |
| Number of Items | 1 |
| Package information | Bottle |
| Part Number | 15F137 |
| Product Warranty | refer to Castrol website |
| Recommended Uses For Product | Manual transmissions in passenger cars |
| Recommended uses for product | Manual transmissions in passenger cars |
| SAE J300 Viscosity Grade | 75W-90 |
| Specific Uses For Product | Use on transmissions, transaxles and suitable for VW |
| Unit Count | 1000.0 millilitre |
| Upper Temperature Rating | 218 Degrees Celsius |
| Viscosity | 75W 90 SAE Grade |
D**S
Well known brand- good price
A good oil at a reasonable price
P**.
Quality oil
Good product, reasonable price, delivered on time.
A**R
Good product
Great product arrived quickly and exactly what I needed. Price was good and delivery was quick bought for my fiesta 1.0 eco
C**S
Good price for the product
Got a good deal on this!
J**S
High quality Castrol oil
I always use Castro oil in my vehicles from my motorbike to my truck. Have never changed transmission oil before so bought this and what a difference. For reference I have an old Mitsubishi l200 pickup truck so requires regular maintenance Oil quality is fantastic and has not let me down. For ease I also purchased a syringe to help refill the gear box and transfer case which made it much easier. I would never not use Castrol oil
B**J
Premium gear oil
A premium oil that will probably last the rest of my old VW vans life. Same price as local major chain retailer.
J**T
Best price!
Prompt and efficient service and the best price I could find the time for. Thank you
A**E
Don't be put off by feel when cold , it gets better
Used in gearbox and differential, differential is quiet so must be happy , gearbox a little notchy when cold but very nice once warmed up and stays smooth during longer periods of driving .
S**N
Gör jobbet
Bra produkt. Praktiskt pip när du ska hälla ur från den.
H**Y
Valvulina
Buena calidad y contento con el producto.
R**T
bon produit
ras bien livré en temps et heure bon produit
P**S
Huile à utiliser absolument
Formidable produit
A**.
Gutes Produkt
Gutes Produkt. Einfach zu handhaben.
Trustpilot
3 weeks ago
2 weeks ago