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

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

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

⏱️Reduces shift time with smoother synchro action

⚙️75W-90 viscosity for optimal gear protection

🛡️GL-4 rating safe for brass synchros, prevents corrosion

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 49.93

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

Secure transaction

Description

⚙️ Shift smoother, drive smarter — don’t get left behind!

TRUSTED LEGACY - Red Line’s proven formula since 1979 outperforms competitors
EFFORTLESS SHIFTING - Eliminates notchy, crunchy shifts even in cold temps
VERSATILE COMPATIBILITY - Meets GL-1, GL-3, and GL-4 specs for broad use
PRECISION GEAR PROTECTION - Extends synchro life with high-performance GL-4 formula
PREMIUM QUALITY ASSURANCE - Safe for brass synchros—no reactive sulfurs to cause damage

Red Line 50304 MT-90 is a premium 75W-90 GL-4 manual transmission lubricant designed to deliver superior gear protection and extend synchro life. Its advanced formula ensures quicker, smoother shifts even in cold conditions, while being safe for brass synchros by avoiding harmful reactive sulfurs. Trusted since 1979, this lubricant is ideal for GL-1, GL-3, and GL-4 applications, making it the go-to choice for professionals demanding reliable, high-performance transmission care.

Specifications

ASIN	B000CPCBEQ
Best Sellers Rank	#1,893 in Automotive ( See Top 100 in Automotive ) #5 in Gear Oils
Brand Name	Redline Oil
Container Type	Bottle
Customer Reviews	4.9 4.9 out of 5 stars (4,979)
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
Part Number	50304
Recommended Uses For Product	Lubricant,Lube
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	946 Milliliters
Viscosity	75W90
Warranty Description	LIMITED WARRANTY

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Ayesha M.

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

5 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.