The Best 75w90 Gear Oil of 2023

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We ranked and reviewed the top 10 Best 75w90 Gear Oil in 2023. Read more How we ranked

Emily Sloyan
Mar 29, 2023 10:32 AM

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ACDelco GM Original Equipment 10-4128 GL-5 75W-90 Synthetic Lubricant - 1 gal

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SCORE
8.7
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
ACDelco

Features

Meets American Petroleum Institute (API) GL-5 specification for use in severe conditions

Formulated for improved fuel efficiency, lower axle temperature operation, and improved thermal stability

High-quality product is suitable for both car and truck axles

PROS

CONS

Royal Purple 06300 75w90 Max Gear Oil Case, 6 Quart, 1 Pack

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SCORE
9.8
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Royal Purple

Features

Ultra-tough, high performance Automotive hypoid gear oil to provide maximum protection to heavily loaded gears while maximizing power throughout the drive train

Max Gear outperforms ordinary gear oils by combining the highest quality synthetic oils with Royal Purple's proprietary Synerlec additive technology

Makes gears run smoother, quieter, cooler and longer without overhauls

A direct reduction of drag in the drive train has huge advantage for trucks and other 4-wheel drive vehicles

Formulated with a friction modifier additive - no additional additives are necessary

PROS

CONS

Valvoline SynPower SAE 75W-90 Full Synthetic Gear Oil 1 QT

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SCORE
9.6
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Valvoline

Features

Formulated to maintain excellent low temperature fluid protection

Helps provide outstanding thermal stability for cleanliness and longer service life

Contains special additives to assist in protecting gear teeth from rust and corrosion and reduce chattering in limited-slip differentials

Recommended for conventional and limited slip differentials and non-synchronized manual transmissions where API GL-5 or API GL-4 fluid is specificed

PROS

CONS

Lucas Oil 10047 SAE 75W-90 Synthetic Transmission and Differential Lube - , Clear, 1 Quart (32 Ounces)

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SCORE
8.9
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Lucas Oil

Features

Fit type: Vehicle Specific

Affordable solutions

Replaces OEM number: Lucas Oil: 10047

Excellent for use in limited-slip differentials

Packaging May Vary

PROS

CONS

Royal Purple 01300 Max Gear 75W-90 High Performance Synthetic Automotive Gear Oil , 1 Quart (32 Ounces)

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SCORE
7.5
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Royal Purple

Features

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.

PROS

CONS

Lucas Oil 10048 SAE 75W-90 Synthetic Transmission and Differential Lube - 1 Gallon

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SCORE
7.1
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Lucas Oil

Features

Fit Type: Vehicle Specific

Package Dimensions: 31.75 H x 15.24 L x 15.24 W (centimeters)

Country of Origin : United States

Package Weight: 3.447 kilograms

PROS

CONS

Red Line 57905 75W90 GL-5 Gear Oil - 1 Gallon

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SCORE
9.0
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Red Line

Features

Use to prevent limited-slip chatter

Good shiftability and synchro compatibility

Great gear protection and performance

Allow for faster shifting

PROS

CONS

Red Line 57904 (75W90) Synthetic Gear Oil - 1 Quart

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SCORE
9.4
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Red Line

Features

Allows for faster shifting

Makes the transmission synchronizers come to equal speeds more quickly

Can also be used in racing limited-slip differentials

PROS

CONS

Mobil Synthetic, SAE Grade : 75W-90, 1 gal. Jug 122035-1 Each

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SCORE
8.8
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Mobil

Features

Made in United States

PROS

CONS

Valvoline High Performance SAE 75W-90 Gear Oil 1 QT

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SCORE
8.8
KT Score

KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.
Brand
Valvoline

Features

Protects against severe temperatures to help extend service life

Formulated with extreme-pressure additives to minimize gear wear from shock loads

Helps protect against gear wear from scuffing, scouring, corrosion and pitting

Recommended for limited-slip hypoid differentials and non-synchronized manual transmissions in passenger cars, light trucks, sport utility vehicles, vans and heavy-duty trucks where an API-GL5 or GL-4 fluid is specified

PROS

CONS

Last update on 2023-03-29 / Prices / Affiliate links / Images, and Product Highlights from Amazon Product Advertising API

Editor's Notes

We ranked and reviewed the top 10 Best 75w90 Gear Oil in 2023. With the support of 48,899 customer's reviews, we hope that this article can give you the most realistic view of these products. The list below contains some main brands as acdelco, royal-purple, valvoline, lucas-oil, red-line, mobil.