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Red Line50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart

Red Line50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart

Q: Can I use this for my 2011 Mazdaspeed 3? (Manual transmission)

It's in my 2014 CX-5 which requires 75W-80. Works better than Mazda MTF.

Q: What kind of improvement will I see using this over factory in an mt82 in a mustang?

Not much, it runs a tad smoother when at temp but the notorious 3rd gear issue is still present, I noticed 5th would also scratch when it got really really cold. I'm thinking about switching to ATF like most others have in accordance with Ford's specs.

Q: I have a bmw 89 325IS and i need 80w gl-4 which one is the one i need to get?

If you have a manual transmission then you are looking at the correct one which is part number 50204

Q: Is this safe to use in my 1980 Mercedes Benz 240D?

Did a search on Pelican Parts for your 240D and it recommends this fluid for your manual transmission.

Product ID: 2018135

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Details

Material
Brass
Brand
Red Line
Package Information
Bottle
Liquid Volume
32 Fluid
Item Weight
1.7 Pounds

⏱️Balanced friction for quicker, smoother shifts

⚙️75W80 viscosity for optimal gear protection

🛡️GL-4 formula safe for brass synchros

Frequently Bought Together

Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart

Slippery Pete - Fluid Pump for Standard Quart Bottles - 8cc per Pump Stroke and 3rd Hand Adapter, Transfer Gear Oil, Transmission and Differential Fluid (28mm)

Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart (2 Pack)

Description

⚙️ Shift smarter, drive stronger — the gear oil that means business

SHIFT LIKE A PRO - Balanced friction control delivers faster, smoother gear changes
BRASS SYNCHRO SAFE - No reactive sulfurs to damage sensitive transmission parts
LEGACY OF EXCELLENCE - Red Line’s proven performance since 1979—no compromises
TRUSTED BY ICONIC BRANDS - Preferred choice for BMW, Honda, Mini Cooper, Land Rover & more
PRECISION GEAR PROTECTION - Extends synchro life with high-performance GL-4 formula

Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant is a premium synthetic gear oil designed for manual transmissions requiring GL-1, GL-3, and GL-4 specs. It offers superior gear protection, extends synchro life, and ensures quicker, smoother shifts with a friction-balanced formula safe for brass synchros. Trusted by leading automotive brands and crafted by Red Line’s legacy of high-performance lubricants since 1979.

Specifications

Material	Brass
Brand	Red Line
Package Information	Bottle
Liquid Volume	32 Fluid Ounces
Item Weight	1.7 Pounds
Recommended Uses For Product	auto racing
Viscosity	185
Upper Temperature Rating	1 Kelvin
Flash Point	232 Degrees Celsius
Specific Uses For Product	Specific vehicle transmissions (e.g. BMW, Honda/Acura, Ford Focus, Land Rover/Range Rover LT77S, Mitsubishi, Dodge & Jeep NV1500, NV3500, NV3550 & NV5600 truck transmissions)
Item Form	Liquid
Global Trade Identification Number	00083522502047
Manufacturer	Red Line
Unit Count	32.0 Fluid Ounces
UPC	083522502047
Number of Items	1
Model	Quart
Item Weight	1.7 pounds
Product Dimensions	9 x 3.91 x 3.82 inches
Item model number	(50204)
Is Discontinued By Manufacturer	Yes
Exterior	Machined
Manufacturer Part Number	50204
OEM Part Number	50204
Special Features	75W80, Gear Oil\|Drivetrain & Differentials, MTL 75W80 Manual Transmission Gear Oil GL-4 1 Quart Red Line Oil, Manual Transmission Gear Oil

Have a Question? See What Others Asked

Can I use this for my 2011 Mazdaspeed 3? (Manual transmission)

What kind of improvement will I see using this over factory in an mt82 in a mustang?

I have a bmw 89 325IS and i need 80w gl-4 which one is the one i need to get?

Is this safe to use in my 1980 Mercedes Benz 240D?

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