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 Line50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (2 Pack)

Red Line50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (2 Pack)

4.9/5

Product ID: 19688723

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Details

Brand
Red Line
Package Information
Bottle
Liquid Volume
64 Fluid
Item Weight
2 Pounds
Recommended Uses For Product
Gear Oil

⏱️Reduces shift lag with perfect synchro friction

⚙️75W-90 viscosity for optimal gear protection

🛡️GL-4 safe formula protects brass synchros

Description

⚙️ Shift into the fast lane of gear protection and smoothness!

TRUSTED LEGACY - Red Line’s proven performance since 1979 means no compromises on quality
EFFORTLESS SHIFTING - Eliminates notchy shifts even in cold starts for smooth driving
VERSATILE COMPATIBILITY - Works seamlessly with GL-1, GL-3, and GL-4 gear oils and motor oils
PRECISION GEAR PROTECTION - Extends synchro and transmission life with advanced GL-4 formula
SAFE ON SENSITIVE COMPONENTS - No reactive sulfurs to damage brass synchros, ensuring long-term reliability

Red Line 50304 MT-90 is a high-performance 75W-90 GL-4 manual transmission lubricant designed to extend synchro life and ensure smooth, notchy-free shifting even in cold conditions. Compatible with GL-1, GL-3, and GL-4 applications, it protects sensitive brass synchros by avoiding harmful reactive sulfurs. Trusted since 1979, this 1-quart bottle delivers proven gear protection and superior transmission performance.

Specifications

Brand	Red Line
Package Information	Bottle
Liquid Volume	64 Fluid Ounces
Item Weight	2 Pounds
Recommended Uses For Product	Gear Oil
Viscosity	75W90
Item Form	Oil
Manufacturer	Red Line
Unit Count	64 Fluid Ounces
UPC	737534816592
Number of Items	1
Item Weight	1.99 pounds
Product Dimensions	7 x 7 x 12 inches
Item model number	50304
Is Discontinued By Manufacturer	No
Manufacturer Part Number	50304
OEM Part Number	50304-2

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Red Line50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (2 Pack)

Details

Description

Specifications

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