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Safe for brass synchros - gl-4 gear oil lacks the reactive sulfurs found in most GL-5 oils that cause damage.





Not to be used in applications requiring a GL-5 extreme pressure or other gear oil quality. Recommended for use in traditional transmissions, Borg-Warner, Muncie, such as Rockwell, Saginaw, Ford, and import transmissions/transaxles calling for an API GL-4 gear oil.
1. Red Line
#ad
1 Quart, Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant
#adRed Line #ad - Popular in vw audi; Nissan; Toyota and Mazda. Also available as lighter viscosity like MTL and MT-85. Stable at high temperatures in performance applications.More information #ad
Less slippery low sulfur formula compatible with brass synchronizers. Satisfies gear oil viscosity requirements of 75W; 80W; SAE 40 10W40 and 15W40 motor oil.Brand | Red Line #ad |
Manufacturer | Red Line #ad |
Height | 16 Inches |
Length | 65 Inches |
Weight | 1.7 Pounds |
Width | 14 Inches |
Part Number | 50304 |
Model | 50304 |
More information #ad
2. Red Line
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Red Line MT-85 75W85 GL-4 Manual Transmission Lubricant Pack of 2
#adRed Line #ad - This 75w85 gl-4 gear oil is designed to fill the viscosity gap between mtl 70w80 gl-4 and mT-90 75W90 GL-4, making it a perfect fit Compatible with many Nissan, Hyundai, Mitsubishi, Kia and NV4500 pickup truck transmission Compatible with.More information #ad
Brand | Red Line #ad |
Manufacturer | Red Line #ad |
Height | 8.7 Inches |
Length | 7.2 Inches |
Width | 2.1 Inches |
Part Number | 50504-2 |
Model | 8542047824 |
More information #ad
3. Liqui Moly
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1 Liter, Liqui Moly 20012 SAE 75W-90 GL-4 Gear Oil
#adLiqui Moly #ad - Excellent aging resistance, good viscosity/temperature properties. Reduces transmission noise, wide viscosity range. Good seal compatibility. Excellent wear protection, high rust and corrosion protection. Low manual shifting effort, optimum pressure-absorption capability.More information #ad
Brand | Liqui Moly #ad |
Manufacturer | Liqui Moly #ad |
Height | 10.31 Inches |
Length | 3.39 Inches |
Weight | 1.54 Pounds |
Width | 3.39 Inches |
Part Number | 20012 |
Model | 20012 |
More information #ad
4. Red Line
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Red Line 50305 Manual Transmission MT 90W Gear Oil, Synthetic Gear Lube, 1 Gallon
#adRed Line #ad - Recommended for gl-1, GL-3 & GL-4 applications. No compromises. High performance - gear protection and longer synchro life. Popular motor oil for - nissan, vw/audi, lotus Elise/Exige, toyota, Mazda, Mitsubishi, Mendeola transmissions & Atlas transfer cases for Off-Road.Safe for brass synchros - gl-4 gear oil lacks the reactive sulfurs found in most GL-5 oils that cause damage.
More information #ad
Recommended for gl-1, gl-3, and gL-4 applications, as well as where most special synchromesh fluids are specified. Offers quicker shifts - excellent gear and synchro protection, balanced friction control & slipperiness for easier shifting even in cold climates. Why red line - established in 1979, Red Line Products perform & protect better than any on the market.Brand | Red Line #ad |
Manufacturer | Red Line #ad |
Height | 11.25 Inches |
Length | 7.5 Inches |
Weight | 7 Pounds |
Width | 4 Inches |
Part Number | 50305 |
Model | 50305 |
More information #ad
5. Valvoline
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Valvoline SynPower SAE 75W-90 Full Synthetic Gear Oil 1 QT
#adValvoline #ad - Formulated to maintain excellent low temperature fluid protection. Contains special additives to assist in protecting gear teeth from rust and corrosion and reduce chattering in limited-slip differentials.More information #ad
Helps provide outstanding thermal stability for cleanliness and longer service life. Recommended for conventional and limited slip differentials and non-synchronized manual transmissions where API GL-5 or API GL-4 fluid is specificed.Brand | Valvoline #ad |
Manufacturer | Valvoline #ad |
Height | 11.6 Inches |
Length | 3.38 Inches |
Weight | 0.01 Pounds |
Width | 3.38 Inches |
Part Number | VV975 |
Model | VV975 |
More information #ad
6. Lucas Oil
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Clear, Lucas Oil 10047 SAE 75W-90 Synthetic Transmission and Differential Lube, , 1 Quart 32 Ounces
#adLucas Oil #ad - Replaces oem number: Lucas Oil: 10047. Packaging May Vary. Fit type: Vehicle Specific. Affordable solutions. Excellent for use in limited-slip differentials.More information #ad
Brand | Lucas Oil #ad |
Manufacturer | LUCAS OIL #ad |
Height | 2.92 Inches |
Length | 9.94 Inches |
Weight | 2.03 Pounds |
Width | 3.09 Inches |
Part Number | 051-507 |
Model | 051-507 |
Warranty | Manufacturer Warranty |
More information #ad
7. Valvoline
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Valvoline FlexFill Full Synthetic SAE 75W-90 Gear Oil 1 QT Pouch
#adValvoline #ad - Formulated for ultimate gear protection and performance. Contains an extreme pressure additive for better load carrying capacity and wear protection.More information #ad
Full synthetic formula for exceptional high and low temperature protection. Works in tight spaces and makes gear oil easier to use. Excellent thermal stability designed to protect oil from high temperature breakdown.Brand | Valvoline #ad |
Manufacturer | Valvoline #ad |
Part Number | 889785-EA |
Model | 889785-EA |
More information #ad
8. Valvoline
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Valvoline High Performance SAE 75W-90 Gear Oil 1 QT
#adValvoline #ad - Recommended for limited-slip hypoid differentials and non-synchronized manual transmissions in passenger cars, light trucks, sport utility vehicles, vans and heavy-duty trucks where an API-GL5 or GL-4 fluid is specified.More information #ad
Formulated with extreme-pressure additives to minimize gear wear from shock loads. Protects against severe temperatures to help extend service life. Helps protect against gear wear from scuffing, scouring, corrosion and pitting.Brand | Valvoline #ad |
Manufacturer | Valvoline #ad |
Height | 11.6 Inches |
Length | 3.38 Inches |
Weight | 1.55 Pounds |
Width | 3.38 Inches |
Part Number | VV820 |
Model | VV820 |
More information #ad
9. VP Racing Fuels
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VP Racing Fuels Hi Performance Classic GL-4 Gear Oil Quart SAE 80W-90 4 Pack
#adVP Racing Fuels #ad - Do not use in applications calling for an OEM specialized lubricant. Applications include synchronizers, thrust washers, bushings and other components typically found in classic manual transmissions and transaxles.Not to be used in applications requiring a GL-5 extreme pressure or other gear oil quality. Recommended for use in traditional transmissions, Borg-Warner, Muncie, such as Rockwell, Saginaw, Ford, and import transmissions/transaxles calling for an API GL-4 gear oil.
More information #ad
Vp classic sae 80w-90 api gl-4 gear oil for use with ‘yellow metals', thrust washers, like synchronizers, bushings, & other components typically found in classic manual transmissions and transaxles.Brand | VP Racing Fuels #ad |
Manufacturer | VP Racing Fuels #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 0 Pounds |
Width | 0 Inches |
Part Number | 2703 |
More information #ad