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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50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (2 Pack)

Product ID: 19688723

Details

Brand
Red Line
Item Weight
1.99 Pounds
Liquid Volume
64 Fluid
Material
Oil
Package Information
Bottle

⏱️Faster, smoother shifts even in cold temps

⚙️75W-90 viscosity for optimal gear protection

🛡️GL-4 safe formula protects brass synchros

€ 119.54

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Description

⚙️ Shift smarter, not harder — the lubricant your transmission deserves!

UNMATCHED GEAR DEFENSE - High-performance formula extends synchro and gear life, reducing costly repairs.
VERSATILE COMPATIBILITY - Meets GL-1, GL-3, and GL-4 specs, fitting a wide range of manual transmissions and transaxles.
TRUSTED LEGACY PERFORMANCE - Red Line’s proven expertise since 1979 guarantees top-tier protection and performance.
SAFE ON SENSITIVE COMPONENTS - Free from reactive sulfurs found in GL-5 oils, ensuring brass synchros stay damage-free.
SEAMLESS SHIFTING EXPERIENCE - Perfect synchronizer friction coefficient eliminates notchy shifts, even in cold starts.

Red Line 50304 MT-90 is a premium 75W-90 GL-4 manual transmission and transaxle lubricant designed for superior gear protection and longer synchro life. Its advanced formula ensures quicker, smoother shifts even in cold conditions, while being safe for brass synchros by excluding damaging reactive sulfurs. Trusted since 1979, this 2-pack quart set is ideal for GL-1, GL-3, and GL-4 applications, making it a top choice for professional-grade vehicle maintenance.

Specifications

ASIN	B00NT5V8RW
Best Sellers Rank	#2,059 in Automotive ( See Top 100 in Automotive ) #4 in Gear Oils
Brand Name	Red Line
Container Type	Bottle
Customer Reviews	4.9 4.9 out of 5 stars (5,047)
Item Form	Oil
Item Weight	1.99 Pounds
Liquid Volume	64 Fluid Ounces
Manufacturer	Red Line
Material	Oil
Model Number	50304
Number of Items	2
Part Number	50304
Recommended Uses For Product	Gear Oil
SAE J300 Viscosity Grade	75W-90
Specific Uses For Product	Manual transmissions and transaxles, GL-1, GL-3, and GL-4 applications
UPC	737534816592
Unit Count	64 Fluid Ounces
Viscosity	75W90

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€ 119.54

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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