Is 75w90 synthetic gear oil profitable to sell on Amazon United States?

The niche generates $956K/yr across 16 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +5.7%. Flapen's verdict: Worth a look (51/100).

How competitive is the 75w90 synthetic gear oil niche?

7 brands and 204 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 92% of demand.

What do buyers complain about in 75w90 synthetic gear oil?

Top complaints mined from reviews: Lubrication, Smell, Leak-Proof. The return rate is 1.7%.

When does demand for 75w90 synthetic gear oil peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the 75w90 synthetic gear oil niche?

Listings span $12.15–$71.23; the average listing price is $35.58 (sweet spot $15–$100). The average incumbent carries 1,808 reviews — the moat a new listing must climb.

75w90 synthetic gear oil

Worth a look

Shows a sweet-spot price point ($35.58 avg), but strong incumbent ratings (4.8★) keeps it on the watch list.

Avg price

Incredible$35.58

avg listing price — sweet spot $15–$100

Price range

Great$12.15–$71.23

cheapest to priciest tracked listing — scored on the share inside $15–$100

Returns

Great1.7%

return rate — above 5% kills the launch gate

Market size

Great$956K

$956K/yr · 438K searches

Conversion

Good6.1%

search→purchase rate — share of searches ending in a sale

Review moat

Okay1,808.44

avg incumbent reviews — the moat a new listing must climb

Competition

Okay64%

top-5 click share — leaders hold, buyers still browse

Growth

Okay+5.7%

90-day search growth — must beat 0% to launch

Brand share

Bad92%

top-5 brand share — brand-locked demand

Quality gap

Bad4.8★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, 75w90 synthetic gear oil is a $956K/yr Amazon United States market (438K searches/yr). The top 5 brands hold 92% of demand. Verdict: Worth a look — 51/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

75w90 synthetic gear oil market data

Units sold / yr: 40K–50K; avg 2,500–3,000/product
Revenue / yr: $1.4M–$1.8M; units × avg price
Conversion rate: 6.1%
Avg BSR: #23
Page quality: 0%
Prime: 94%
Sponsored: 69%
Out of stock: 0.0%
Avg brand age: 93 months
Avg seller age: 143 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 falling

Sellers

204

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

64%

Top 20: 100%

Open market

Valvoline62%
Lucas Oil11%
Amsoil11%
Triax4%
Mobil4%
Royal Purple4%
Open — no brand owns it (1 brand, 4%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +5.7% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top 75w90 synthetic gear oil search terms

75w-90 synthetic gear oil145K/yr +16.0%5.7% conv.
75w90 synthetic gear oil59K/yr -2.1%5.2% conv.
amsoil severe gear 75w-9019K/yr +59.1%3.0% conv.
75w9024K/yr +2.8%4.3% conv.
gear oil 75w-9024K/yr -14.9%5.1% conv.
75w90 gear oil26K/yr -13.2%4.5% conv.
75-90 full synthetic gear oil19K/yr -6.3%7.0% conv.
75w-9016K/yr +8.3%5.2% conv.
valvoline 75w-90 full synthetic gear oil13K/yr +6.8%9.5% conv.
75w-90 gear oil11K/yr +28.7%5.2% conv.

All search terms

Top 75w90 synthetic gear oil products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Valvoline FlexFill Advanced Full Synthetic 75W-90 Gear Oil 1 Quart Pouch

Valvoline$15.474.8★4,288 rev

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

Amsoil$36.354.8★195 rev

Valvoline Flexfill SAE 75W-90 Full Synthetic Gear Oil 1 QT Case of 4

Valvoline$56.374.8★4,288 rev

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

Valvoline$52.414.8★4,288 rev

75/90 Trans&Diff Lube

Lucas Oil$16.194.8★1,724 rev

Newest

by launch date

Valvoline FlexFill Extended Protection Full Synthetic 75W-90 Gear Oil 1 QT Pouch

Valvoline$18.56144 rev

11mo ago

Valvoline FlexFill Extended Protection Full Synthetic 75W-90 Gear Oil 1 QT Pouch Case of 4

Valvoline$71.23144 rev

11mo ago

Mobil1 1043611 Full Synthetic Gear Lubricant 75W-90 Quart 6 PK

Speedway Motors$69.17608 rev

4y ago

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

Amsoil$36.35195 rev

5y ago

Valvoline FlexFill Advanced Full Synthetic 75W-90 Gear Oil 1 Quart Pouch

Valvoline$15.474,288 rev

5y ago

What buyers say about 75w90 synthetic gear oil

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall28%

“This gear oil seems like very good quality”

Value For Money17%

“Not cheap”

Lubrication14%

“Good oil”

Ease Of Use11%

“Easy to Use”

Advertised Vs Actual Product7%

“worked as advertised”

Efficiency3%

“Works well”

Soft Feel2%

“Shifts feel smoother”

Noise Level1%

“Works great and the differential is extremely quiet”

Locally Manufactured1%

“Perfect choice for my Colorado”

Maintenance And Repair1%

“Good for older car maintenance”

What buyers complain about

Lubrication13%

“Did not have a lift so did the Ol crawl under”

Smell13%

“Smelly”

Leak-Proof10%

“Arrived leaking”

Value For Money8%

“Ended up costing me more than it was worth”

Ease Of Use5%

“Containers are a little tricky to use if you have to use an extension hose”

Storage Capacity4%

“Not much space wothout lifting thr car”

Advertised Vs Actual Product4%

“as advertised - it is gl5 although the picture doesn't show it anymore”

Noise Level4%

“Had a car with a loud rear end”

Quality-Overall4%

“Garbage”

Thickness2%

“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%

Common questions

Is 75w90 synthetic gear oil profitable to sell on Amazon United States?: The niche generates $956K/yr across 16 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +5.7%. Flapen's verdict: Worth a look (51/100).
How competitive is the 75w90 synthetic gear oil niche?: 7 brands and 204 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 92% of demand.
What do buyers complain about in 75w90 synthetic gear oil?: Top complaints mined from reviews: Lubrication, Smell, Leak-Proof. The return rate is 1.7%.
When does demand for 75w90 synthetic gear oil peak?: Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the 75w90 synthetic gear oil niche?: Listings span $12.15–$71.23; the average listing price is $35.58 (sweet spot $15–$100). The average incumbent carries 1,808 reviews — the moat a new listing must climb.