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

⏱️Friction-balanced for quicker, smoother shifts

⚙️75W-90 viscosity for optimal gear protection

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

R1800

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Shift smarter, protect harder — the gear oil pros swear by!

BROAD COMPATIBILITY - Meets GL-1, GL-3, GL-4 specs and safe for all manual transmissions needing 75W-90.
ULTIMATE GEAR DEFENSE - High-performance synthetic formula extends synchro and gear life under pressure.
PRECISION FRICTION CONTROL - Perfect synchronizer coefficient of friction ensures smooth, fast downshifts.
TRUSTED LEGACY PERFORMANCE - Since 1979, Red Line delivers uncompromising protection and reliability.
EFFORTLESS SHIFTING MASTERY - Eliminates notchy shifts even in cold starts for seamless gear changes.

Red Line MT-90 75W-90 GL-4 Manual Transmission Lubricant is a premium synthetic gear oil designed for manual transmissions and transaxles. It offers superior gear and synchronizer protection, eliminates notchy shifting even when cold, and is safe for brass synchros by avoiding harmful sulfurs. Trusted since 1979, this lubricant meets multiple GL specifications and ensures smoother, quieter, and longer-lasting transmission performance.

Specifications

ASIN	B000CPCBEQ
Best Sellers Rank	#8,630 in Automotive ( See Top 100 in Automotive ) #12 in Automotive Transmission Fluids
Brand	Red Line
Brand Name	Red Line
Container Type	Bottle
Customer Reviews	4.8 out of 5 stars 2,767 Reviews
Global Trade Identification Number	00083522503044
Included Components	MT-90 75W-90 GL-4
Item Form	Oil
Item Weight	771 g
Item weight	771 g
Liquid Volume	32 Fluid Ounces
Liquid volume	32 Fluid Ounces
Manufacturer	Yukon Gear & Axle
Material	Synthetic
Model Number	50304
Number of Items	1
Package information	Bottle
Part Number	50304
Recommended Uses For Product	Automobile transmission lubrication and maintenance
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
UPC	083522503044
Unit Count	32 Milliliters
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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R1800

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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