75w90 synthetic gear oil
Skip it51/100strong incumbent ratings (4.8★) — 75w90 synthetic gear oil doesn't clear our bar today.
Market/yr
$956K
Growth (1y)
+192.8%
Products
16
Brands
7
was 9 a year ago
Sellers
204
Price range
$12.15–$71.23
Returns
1.7%
Rating
4.8★
Skip it
Scored 51/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 104 weeks — +192.8% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.No pronounced peak months · busiest ÷ quietest = 1.4×
Competition
- Valvoline62%
- Lucas Oil11%
- Amsoil11%
- Triax4%
- Mobil4%
- Royal Purple4%
- Other (1 brands)4%
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them. 7 brands and 204 sellers compete here.
Brands
7 falling
was 9 a year ago
Sellers
204
Top 5 brand share
92%
Product shelf
All 16 tracked products in this niche.

Valvoline FlexFill Advanced Full Synthetic 75W-90 Gear Oil 1 Quart Pouch
Valvoline
$15.474.8★4,288 reviews

Amsoil SVGPK 100% Synthetic Extreme Pressure (EP) SEVERE GEAR Lube Quart Easy-Pack (75W-90)
Amsoil
$36.354.8★195 reviews

Valvoline Flexfill SAE 75W-90 Full Synthetic Gear Oil 1 QT Case of 4
Valvoline
$56.374.8★4,288 reviews

Valvoline SynPower SAE 75W-90 Full Synthetic Gear Oil 1 GA
Valvoline
$52.414.8★4,288 reviews

75/90 Trans&Diff Lube
Lucas Oil
$16.194.8★1,724 reviews

Valvoline Daily Protection 75W-90 Gear Oil 1 Quart
Valvoline
$12.154.8★1,256 reviews

Lucas Oil 10048 Synthetic SAE 75W-90 Gear Oil - 1 Gallon
Lucas Oil
$51.694.9★1,424 reviews

TRIAX Synergy Gear Max 75W-90 GL-5 Limited Slip Ultra Long Drain 500k Miles Manual Transmission Gear/Differential Lubricant (1 Gallon)
Triax
$38.444.9★613 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“This gear oil seems like very good quality”
“Not cheap”
“Good oil”
“Easy to Use”
“worked as advertised”
“Works well”
“Shifts feel smoother”
“Works great and the differential is extremely quiet”
“Perfect choice for my Colorado”
“Good for older car maintenance”
What buyers complain about
“Did not have a lift so did the Ol crawl under”
“Smelly”
“Arrived leaking”
“Ended up costing me more than it was worth”
“Containers are a little tricky to use if you have to use an extension hose”
“Not much space wothout lifting thr car”
“as advertised - it is gl5 although the picture doesn't show it anymore”
“Had a car with a loud rear end”
“Garbage”
“I would say the viscosity is slightly thinner than the Valvoline synthetic equivalent”
Top return reasons
- Leak-Proof25%
- Compatibility-Overall24%
- Lubrication13%
- Value For Money10%
- Advertised Vs Actual Product6%
- Functionality-Overall4%
- Defective Material/Parts3%
- Certifications2%
- Size-Overall2%
- Product Condition2%






