Redline Transmission and Differential Fluid for BMW 6 Series E24 (1977-1989)

Red Line MTL Manual Transmission Fluid/Oil

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T#:3426

Part#: MTL

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$ 25.49 USD

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Red Line 70W/80W GL-4 MTL gear oil (SAE 5W30/10W30 engine oil viscosity) designed for use in BMW manual transmissions. Provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting. The MTL can be used as a replacement for the factory MTF or MTF-LT2 used by BMW. Add MTL to older BMWs that have become tough to shift will restore shift smoothness. Many experts agree that this is best lubricant to use in BMW manual transmissions. Sold by the quart.

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Red Line 75W-90 Differential Gear Oil

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T#:3605

Part#: 8352257904

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$ 25.99 USD

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Red Line 75W90 is a full synthetic high-performance gear oil that is an excellent substitute for expensive factory fluid and an upgrade over off-the-shelf economy fluid. Red Line thoroughly evaluates the manufacturer's recommendations and only makes a fluid recommendation if their own product meets or exceeds the original specification. In many cases the Red Line synthetic will outperform the factory supplied fluids. We've been using Red Line Oil in our BMWs since we opened in 1994 and it remains our best selling BMW differential fluid. 75/90 is the weight most commonly used in BMW differentials since the 1960s, including the factory clutch-type limited-slip diffs (exceptions being M3/M5/M6 cars since 2001). We use 75W90 in nearly all BMW chassis and the custom differentials that we sell. It's great for the street where the polyol-ester base has natural lubricity and friction modifiers lead to smoother and quieter operation with lower operating temps than the factory fluid. We also use it in some track cars that don't already use the more aggressive 75/90NS fluid (without friction modifiers).

Recommended or exceeds specifications for API GL-5, GL-6, MT-1, MIL-L-2105E, SAE J2360, and Chrysler spec MS-9763. Matches the specifications for the factory BMW SAF-XO diff fluid (#07512293972).

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Red Line MT-90 Manual Transmission Fluid 75w90 - 1 Quart - BMW ...

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T#:340531

Part#: RL MT90

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$ 25.49 USD

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RED LINE MT-90 is designed to provide excellent protection and improved shiftability for manual transmissions and transaxles. MTL and MT-90 have cured the problem of hard shifting in numerous transmissions which have notoriously difficult shifting. The secret to their success is two-fold. First, they have the appropriate coefficient of friction for most manual transmission synchronizers. Many gear oils, engine oils, and ATFs are too slippery for proper synchro engagement. Secondly, the viscosity characteristics of MTL and MT-90 allow proper shifting over the entire temperature range which the transmission will experience. The synthetic base oils used have a very high viscosity index which provides relatively constant viscosity as temperature changes. MTL is a low 75W, almost a 70W, at very low temperatures and a high 80W, nearly an 85W, at elevated temperatures, providing adequate viscosity to prevent wear and deaden gear noise. MT-90 is a thicker 75W90 version of MTL. The shear stability and oxidation stability of these products are excellent, thus the physical characteristics of Red Line MTL and MT-90 will change little with use.

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Red Line 75W110 Differential Gear Oil

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T#:388297

Part#: 57804

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$ 25.89 USD

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Redline's 75W110 suprasses all GL-5 specifications, and its full synthetic formula is engineered to provide superior wear resistance with longer service intervals. Special friction modifiers for clutch-type LSDs allow for flawless operation even in extreme conditions. It offers less noise and higher film strength than 75W90 and less drag than 75W140, making it a great fluid for troubleshooting noisy gear sets.

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Red Line Manual Transmission / Differential Fluid 75w90

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T#:394768

Part#: REDLINE4A

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Starting at $ 25.99 USD

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Starting at $ 25.99 USD

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Red Line 75W90 is a full synthetic high-performance gear oil that is an excellent substitute for expensive factory fluid and an upgrade over off-the-shelf economy fluid. Red Line thoroughly evaluates the manufacturer's recommendations and only makes a fluid recommendation if their own product meets or exceeds the original specification. In many cases the Red Line synthetic will outperform the factory supplied fluids. We've been using Red Line Oil in our BMWs since we opened in 1994 and it remains our best selling BMW differential fluid. 75/90 is the weight most commonly used in BMW differentials since the 1960s, including the factory clutch-type limited-slip diffs (exceptions being M3/M5/M6 cars since 2001).

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75w90NS GL-5 Gear Oil - 1 Quart

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T#:31556153

Part#: 1063078TSP

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$ 25.49 USD

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Red Line 75W-140NS Differential Oil

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T#:389801

Part#: 57104

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$ 25.49 USD

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Red Line Lightweight ShockProof� Gear Oil

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T#:1233

Part#: TMS1233

Ships on Jul 23, 2026

$ 25.99 USD

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A unique gear oil designed to lubricate racing transmissions and transaxles which see serious loads (not recommended for most syncro-type transmissions). It has excellent low-temperature flow which allows easier shifting when cold. May be used to obtain maximum power transfer in racing differentials which do not see high temperatures. Similar to a 75W140 gear oil, but with the lower internal friction of an SAE 30 motor oil.Used in two-stroke and four-stroke motocross transmissions (often mixed in equal parts with SuperLight ShockProof™ Gear Oil). Used in most road-racing differentials with moderate power and dogring racing transaxles.

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80W140 GL-5 Gear Oil - 12/1quart

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T#:388155

Part#: 58104

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$ 25.99 USD

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SuperLight ShockProof Gear Oil - 12/1quart

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T#:22789648

Part#: 58504

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$ 25.99 USD

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SuperLight ShockProof Gear Oil stands out as a specialized lubricant meticulously crafted for high-performance applications, specifically tailored for transmissions and gearboxes. This product, hailing from the renowned Red Line Oil, is intricately engineered to deliver exceptional protection even in the most demanding conditions. Here's a breakdown: SuperLight Formula: The "SuperLight" designation signifies that this gear oil is formulated to be lightweight while upholding robust performance characteristics. This makes it a favored choice in racing and high-performance environments, where minimizing fluid friction and enhancing efficiency are paramount. ShockProof Technology: The incorporation of "ShockProof" technology underscores the gear oil's ability to provide outstanding protection against shock loads and extreme pressures. This feature is particularly crucial in scenarios where gears face substantial impact or stress, such as in racing or aggressive driving. High-Performance Applications: Tailored for high-performance and racing vehicles, SuperLight ShockProof Gear Oil is adept at handling the rigorous conditions experienced by transmissions and gearboxes in such demanding applications. Reduced Friction: The lightweight composition of the oil contributes to friction reduction, potentially elevating the overall efficiency of the transmission or gearbox. This characteristic can translate to improved power transfer and enhanced performance. Red Line Oil: As a reputable manufacturer, Red Line is synonymous with producing top-quality lubricants for various automotive applications. Their products enjoy popularity among automotive enthusiasts and industry professionals alike.

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Red Line Heavy ShockProof� Gear Oil

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T#:1234

Part#: TMS1234

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$ 25.99 USD

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A unique lubricant containing a suspension of solid microscopic particles as an extreme pressure agent--unique solid dispersion which cushions gear teeth to help prevent tooth breakage and allows the use of lower viscosities. Recommended for heavily-loaded racing differentials and transmissions, Off Road racing and problem gearboxes. The viscosity characteristics allow the lubricant to resist throwoff and provide a film thickness similar to a 75W250 grade, while providing the same low fluid friction as an SAE 75W90. We have been using RedLine Oil in our street cars and race cars for years. Hands-down, it is the Number One brand of high performance lubricant for BMWs.

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Red Line Manual Transmission/Differential Fluid 75W-90

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T#:394833

Part#: REDLINE25A

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Starting at $ 97.99 USD

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Starting at $ 97.99 USD

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Red Line MTL may be used in transmissions which recommend 75W, 80W, or 85W GL-4 gear oils, or SAE 30 or 5W/10W30 motor oils. If a 90W GL-4 or SAE 40, 10W40, or 15W40 is required, MT-90 may be used. If the transmission or transaxle requires an SAE 90 GL-5 gear oil, then Red Line 75W90NS or 75W140NS Gear Oil may be used.

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Red Line Synthetic D4 ATF - BMW & MINI

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T#:3604

Part#: ATFD4

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$ 18.99

This product was last offered at the strikethrough price on
06-15-2026

$ 18.79 USD

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D4 ATF is a full-synthetic product designed with superior low-temperature properties compared to a Dexron III® fluid, and the improved shear-stability requirements which are part of the Mercon V® specifications. Synthetic D4 ATF is suitable for use where Dexron III, Dexron II, or Mercon fluids are recommended. D4 ATF also provides a GL-4 level of gear protection, making it a superior product for transmissions and transaxles. The balanced frictional characteristics provide smooth and consistent shifts for extended drain intervals. The superior stability compared to petroleum ATFs allows high-temperature operation without varnishing valves and clutches which leads to transmission failure. D4 is similar to Red Line's MTL formula and can be used in many BMW manual transmissions where MTF or MTF-LT2 is called for. Meets or exceeds the following BMW & MINI specifications: 83 22 9 407 807 (LT 71141) 83 22 0 024 359 (ETL-8072B) 83 22 0 026 922 (ETL-7045E) Dexron® III ESSO LT71141 MTF-LT-1 MTF-LT-2 Toyota Type-IV

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Red Line 15W-40 Synthetic Oil - for Diesel's - 1 quart

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T#:201458

Part#: 21404

Ships on Jul 27, 2026

$ 18.99 USD

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Recommended for API CJ-4/CI-4 Plus/CI-4/CF/CH-4/CF-4

Popular for Light Duty trucks including Chevrolet Duramax, Dodge Cummins, Ford Power Stroke

Best choice in medium and heavy-duty diesel truck engines for maximum durability

Improved drain intervals provide excellent value for commercial fleet use

Also for API SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4 E7/E9, MB 228.3

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Redline Transmission and Differential Fluid for BMW 6 Series E24 (1977-1989)

Red Line MTL Manual Transmission Fluid/Oil

Red Line 75W-90 Differential Gear Oil

Red Line MT-90 Manual Transmission Fluid 75w90 - 1 Quart - BMW ...

Red Line 75W110 Differential Gear Oil

Red Line Manual Transmission / Differential Fluid 75w90

75w90NS GL-5 Gear Oil - 1 Quart

Red Line 75W-140NS Differential Oil

Red Line Lightweight ShockProof� Gear Oil

80W140 GL-5 Gear Oil - 12/1quart

SuperLight ShockProof Gear Oil - 12/1quart

Red Line Heavy ShockProof� Gear Oil

Red Line Manual Transmission/Differential Fluid 75W-90

Red Line Synthetic D4 ATF - BMW & MINI

Red Line 15W-40 Synthetic Oil - for Diesel's - 1 quart

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