Red Line
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Red Line 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart (2 Pack)
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Red Line 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart (2 Pack)
Offers quicker shifts, perfect synchronizer coefficient of friction
Red Line 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart (2 Pack)
Item #: 6925158

Red Line 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart (2 Pack)

85% of respondents would recommend this to a friend

Item #: 6925158

BTN 5759

Price Details

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*All items will import from US

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Order now and get it around Thursday, September 24
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Offers quicker shifts, perfect synchronizer coefficient of friction
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What Stands Out

High Performance
Engineered for superior lubrication, ensuring smooth shifting and reducing wear in manual transmissions, enhancing overall performance and lifespan.
GL-4 Compliance
Meets GL-4 specifications for exceptional protection against gear wear, providing peace of mind for manual transmission owners.
Value Pack
Includes two quarts, offering great value for customers needing to service their manual transmissions, saving money while maintaining vehicle performance.

Product Details

Shop online at Ubuy Bhutan for Red Line MT-85 75W85 GL-4 Manual Transmission Lubricant. Get the best deals and fast delivery on Ubuy Bhutan Global Store.
Container TypeBottle
Viscosity75W85
Liquid Volume64 fluid ounces
MaterialSynthetic
Brand NameRed Line
Recommended Uses For ProductLubricant
Item FormOil
ManufacturerRed Line
Unit Count2 Fluid Ounces
UPC737534816479
Number of Items2
Model Number50504
Part Number50504
BrandRed Line
Package InformationBottle
Item Weight4 lbs (1.81 kg)

Who Should Buy?

Suitable For
  • Manual Transmission Users

    Ideal for vehicles with manual transmissions requiring GL-4 rated gear oil for optimal performance and protection.

  • Performance Enthusiasts

    Suitable for sports cars and modified vehicles that demand high-quality gear oil for improved shifting and durability.

  • Older Vehicles

    Recommended for classic and vintage cars where traditional GL-4 oil is necessary to maintain transmission performance.

Not Suitable For
  • Automatic Transmission Users

    Not suitable for vehicles with automatic transmissions which require a different type of fluid for operation.

Product Description

Red Line 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart (2 Pack)

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are the benefits of using Red Line 50504 MT-85 Gear Oil?

    Answer: Red Line 50504 MT-85 Gear Oil offers superior lubrication, improving the performance and longevity of manual transmissions. Its unique formulation is designed to provide excellent protection against wear and deposit formation, even under extreme conditions. This makes it an ideal choice for both everyday driving and high-performance applications, ensuring smooth shifting and reducing noise.
  • Question: Is Red Line 50504 compatible with all manual transmissions?

    Answer: While the Red Line 50504 MT-85 Gear Oil is formulated for GL-4 applications, it is recommended to check your vehicle’s manual for fluid compatibility. This oil excels in various scenarios, including vintage cars and high-performance vehicles, making it a versatile choice if your manual transmission is designed for a 75W85 oil.
  • Question: How often should I change my manual transmission fluid with Red Line 50504?

    Answer: Changing your manual transmission fluid is crucial for maintaining optimal performance. For vehicles under regular driving conditions, it's often recommended to replace the oil every 30,000 to 60,000 miles. If you drive in extreme conditions or use your vehicle for performance purposes, more frequent changes might be beneficial.
  • Question: Can Red Line 50504 be mixed with other gear oils?

    Answer: Mixing Red Line 50504 MT-85 with other oils is not advisable as it may dilute its superior performance qualities. To ensure maximum efficiency and protection, always use the specified oil type recommended for your manual transmission. If you're transitioning to Red Line 50504, it’s best to perform a complete fluid change.
  • Question: What makes Red Line 50504 different from other gear oils?

    Answer: Red Line 50504 MT-85 stands out due to its synthetic formulation, providing enhanced protection against oxidation and thermal breakdown. Unlike conventional gear oils, it also reduces friction significantly, resulting in smoother shifting and improved fuel efficiency. This cutting-edge technology makes it a preferred choice for performance enthusiasts and daily drivers alike.
  • Question: What are the specifications of Red Line 50504 MT-85?

    Answer: Red Line 50504 MT-85 is a synthetic manual transmission gear oil classified as GL-4, with a viscosity rating of 75W85. This blend not only meets but often exceeds the OEM specifications for many manual transmissions, making it suitable for a range of vehicles, from sporty coupes to everyday sedans.
  • Question: Is Red Line 50504 suitable for performance vehicles?

    Answer: Absolutely! Many performance vehicle owners utilize Red Line 50504 MT-85 for its high thermal stability and low friction characteristics. This oil helps achieve precise gear shifts and enhanced performance under high-stress conditions, making it a popular choice for racing and modified engines.
  • Question: Where can I find Red Line 50504 MT-85 Gear Oil in Bhutan?

    Answer: You can purchase Red Line 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil on Ubuy. Ubuy offers a convenient platform to find various automotive products, including quality gear oils. Simply visit their website and search for the product to order it effortlessly.
  • Question: What are common applications of Red Line 50504 Gear Oil?

    Answer: Red Line 50504 MT-85 Gear Oil is ideally used in manual transmissions, including sports cars, trucks, and off-road vehicles. Its unique formulation is also beneficial for vintage cars that require specific lubrication. Using this oil helps enhance overall vehicle performance, making it versatile for a range of driving styles.

Red Line Gear Oils 50504 Editorial Review

The Red Line MT-85 75W85 GL-4 Manual Transmission Lubricant is a fully synthetic gear oil that is compatible with brass synchronizers, making it the perfect choice for manual transmissions in vehicles that require a GL-4 specific gear oil. This product has received positive reviews from customers who have used it in a variety of vehicles, reporting smoother shifting and improved overall performance. Although it is a little pricier than some other options, those who have used it seem to agree that it is worth the investment for the improved performance it provides.

Customer Reviews & Ratings

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Pros

  • Fully synthetic
  • GL-4 spec oil that is safe for brass synchronizers
  • Improved shifting and overall performance reported by customers

Cons

  • Pricier than some other options

Platform Trust & Buyer Confidence

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4.2/5 9477 reviews
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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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10 September 2026 · via Trustpilot
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Opaleye
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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BTN 5759

Order now and get it around Thursday, September 24

QTY:

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