Is anyone running this in an NV4500 long term? How does it hold up?

I've been running it for 35,000 miles in my 1996 model GM NV4500 without issue.

Do I pour the entire contents directly in? Are there any special instructions?

To get maximum benefit of the Red Line you need to replace all the oil in the transmission. For my car, it took 3.4 quarts so I bought four and filled it up until fluid was level with the bottom of the fill plug. If you go to the Red Line website, they have which transmission oil is correct for your car and the capacity of the transmission so you will know how much you will need.

Can i use on 1992 chevy camaro rs?

I would not. It is supposed to be OEM recommended for my 98 vw Cabrio 5speed. So Put $46 worth in and at0°F I could not shift the car until 30 minutes of idling. second Synchromesh was very fussy at 20deg

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Red Line (50304) MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart.

Red Line (50304) MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart.

Product ID: 259376441

Details

Material
Brass
Brand
Red Line
Package information
Bottle
Liquid volume
32 Fluid
Item weight
771 g

⏱️Perfect friction coefficient for quicker shifts

⚙️75W-90 viscosity for optimal gear protection

🛡️GL-4 rated, safe for brass synchros

€ 83.50

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Shift Smooth, Drive Confident: The Ultimate Manual Transmission Ally

VERSATILE COMPATIBILITY - Meets GL-1, GL-3, and GL-4 specs for a wide range of manual transmissions
TRUSTED LEGACY SINCE 1979 - Red Line’s proven formula delivers uncompromising performance
UNMATCHED GEAR PROTECTION - High-performance synthetic formula extends gear and synchro life
SILENT OPERATION AT HIGH TEMPS - Reduces gear whine and rattle for a smoother drive
EFFORTLESS SHIFTING EVEN WHEN COLD - Eliminates notchy shifts with a perfect synchronizer friction balance

Red Line MT-90 75W-90 GL-4 Manual Transmission Lubricant is a premium synthetic gear oil designed to protect gears and synchronizers while enabling smooth, quick shifts even in cold conditions. Compatible with GL-1, GL-3, and GL-4 applications, it prevents corrosion and gear noise, making it a top choice for manual transmissions and transaxles since 1979.

Specifications

Asin	B000CPCBEQ
Best Sellers Rank	#28,689 in Automotive (See Top 100 in Automotive) #36 in Automotive Transmission Fluids
Brand Name	Red Line
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (2,760) 4.8 out of 5 stars
Global Trade Identification Number	00083522503044
Included Components	MT-90 75W-90 GL-4
Item Form	Oil
Item Weight	1.7 Pounds
Liquid Volume	32 Fluid Ounces
Manufacturer	Yukon Gear & Axle
Material	Synthetic
Model Number	50304
Number Of Items	1
Part Number	50304
Recommended Uses For Product	Automobile transmission lubrication and maintenance
Sae J300 Viscosity Grade	75W-90
Specific Uses For Product	Lubricant for manual transmissions and transaxles, Prevent corrosion, Enable smooth shifting, Provide gear protection
Unit Count	32 Milliliters
Upc	083522503044
Viscosity	75W-90

Reviews

C**E

Good oil

Good oil and GL 4 rated for older cars

26.05.2026

A**ー

ちょうどいい量でした。

私の車は2.6L入るので３本で使い切りれました。

1.06.2024

M**S

All ok

Viskas gerai.

9.08.2025

A**A

Excellent

Used it in my safari dicor. Awesome performance. but the price is on higher side.

1.03.2020

P**K

Ottimo olio lubrificante

Ottimo lubrificante, il cambio ora é fluido e non si impunta piu.

20.03.2025

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