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: 2219323

Details

Brand
Redline Oil
Item Weight
1.7 pounds
Liquid Volume
32 fluid
Material
Brass
Package Information
Bottle

⏱️Friction formula for quicker, smoother shifts

⚙️75W-90 viscosity for optimal gear protection

🛡️GL-4 safe for brass synchros, no corrosive sulfurs

8194 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Shift Smooth, Drive Confident: The Ultimate Gear Oil Upgrade

BRASS SYNCHRO SAFE - Free from reactive sulfurs found in GL-5 oils, protecting delicate brass components.
UNMATCHED GEAR DEFENSE - High-performance formula extends synchro and gear life under all conditions.
VERSATILE COMPATIBILITY - Meets GL-1, GL-3, and GL-4 specs, ideal for a wide range of manual transmissions.
TRUSTED LEGACY SINCE 1979 - Red Line’s proven performance means no compromises on reliability and protection.
SEAMLESS SHIFTING EXPERIENCE - Perfect synchronizer friction coefficient eliminates notchy shifts—even in cold starts.

Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission Lubricant delivers premium gear protection and extended synchro life with a friction-optimized formula for smoother shifts. Compatible with GL-1, GL-3, and GL-4 applications, it’s safe for brass synchros and trusted by professionals since 1979.

Specifications

ASIN	B000CPCBEQ
Best Sellers Rank	#1,653 in Automotive ( See Top 100 in Automotive ) #4 in Gear Oils
Brand Name	Redline Oil
Compatible Material	Brass
Container Type	Bottle
Customer Reviews	4.9 4.9 out of 5 stars (5,094)
Global Trade Identification Number	00083522503044
Included Components	MT-90 75W-90 GL-4
Item Form	Fluids,Oil
Item Type Name	ACCESSORIES
Item Weight	1.7 pounds
Liquid Volume	32 fluid ounces
Manufacturer	Yukon Gear & Axle
Material	Brass
Model Number	50304
Number of Items	1
Number of Packs	1
Part Number	50304
Recommended Uses For Product	Lubricant,Lube
SAE J300 Viscosity Grade	75W-90
UPC	083522503044
Unit Count	32 Fluid Ounces
Viscosity	75W90
Warranty Description	LIMITED WARRANTY

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