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Item #:
223581406
Red Line 50305 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Gallon
Item #:
223581406
BSD 124
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This product is not Fulfilled by Ubuy and can take minimum 10 days in delivery. We might cancel the product from the order and refund you if any issue arise with the delivery of this product.
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Protects moving parts for smoother shifts and longer-lasting performance.
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What Stands Out
Advanced Protection
Red Line MT-90 offers superior wear protection for manual transmissions, ensuring a longer lifespan and efficient performance under high-stress conditions.
Enhanced Shift Quality
This lubricant significantly improves shift feel and reduces friction, providing a smooth and responsive driving experience in all temperatures.
Compatibility Assurance
Formulated for GL-4 specifications, it is compatible with a wide range of manual transmission and transaxle systems, offering versatile use across various vehicle models.
Product Details
| Brand Name | Generic |
| Recommended Uses For Product | Lube |
| Specific Uses For Product | Manual transmissions and transaxles |
| Item Form | Fluids,Liquid,Oil |
| Manufacturer | US based company |
| Unit Count | 128.0 Fluid Ounces |
| Number of Items | 1 |
| Part Number | 50305 |
| Model Number | 50305 |
| Included Components | MT-90 75W-90 GL-4 |
| Container Type | Bottle |
| Viscosity | 75W140 SAE Grade |
| Upper Temperature Rating | 1 Degrees Celsius |
| Liquid Volume | 128 Fluid Ounces |
| Item Weight | 2.27 Kilograms |
| Material | Synthetic |
| Brand | Generic |
| Package Information | Bottle |
Who Should Buy?
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Manual Transmission Users
Ideal for vehicles with manual transmissions requiring GL-4 fluid for optimal performance and protection.
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Performance Vehicles
Great for high-performance cars that require enhanced lubrication for improved shifting and reduced wear.
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Classic Car Owners
Recommended for classic cars needing traditional GL-4 lubricant to maintain gearbox longevity and efficiency.
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Automatic Transmission Users
Not suitable for vehicles with automatic transmissions, which require different types of fluid for proper operation.
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High-Temperature Conditions
May not perform well in extremely high temperatures compared to other specialized lubricants designed for such conditions.
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Non-Manual Gearboxes
Inappropriate for applications that do not specifically call for GL-4 lubricants, such as certain modern gearboxes.
Product Description
Red Line 50305 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Gallon
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Customer Questions & Answers
-
Question:
What type of vehicles is this lubricant suitable for?
Answer: It is suitable for vehicles that require GL-1, GL-3, and GL-4 gear oils. -
Question:
Can this lubricant help with cold weather performance?
Answer: Yes, it flows well when cold and reduces notchy shifting even in low temperatures. -
Question:
What is the viscosity requirement for this lubricant?
Answer: The lubricant can accommodate gear oil viscosities of 75W, 80W, SAE 40, 10W40, and 15W40 motor oils.
Gear Oils 50305 Editorial Review
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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12 June 2026 · via Trustpilot
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BSD 124
This product is not Fulfilled by Ubuy and can take minimum 10 days in delivery. We might cancel the product from the order and refund you if any issue arise with the delivery of this product.
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
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Fastest cross-border delivery
Features & Benefits
- Enhances shifting smoothness in manual transmissions and transaxles.
- Protects components to ensure longevity during regular driving.
- Remains effective in various temperatures for consistent performance.
- Reduces wear and maintains a clean environment within the transmission.
- 1-gallon size is perfect for full fluid changes and servicing multiple vehicles.
- Ideal for GL-1, GL-3, and GL-4 applications and safe for brass synchros.