10w40 Motor Oil
MaybeAn estimated 0.5% of orders come back. But the products selling today already average 4.8★, so 10w40 Motor Oil is a Maybe.
- Flapen Score
- 53 / 100Top 31% of 7,287 Automotive niches · +4 vs the category median of 4953
- Market size
- $552K/yr288K searches / yr
- 90-day growth
- +31.6%search demand this quarter
- Competition
- 69%top-5 click share · 10 brands · 130 sellers
Flapen Score
10w40 Motor Oil against its category
The dotted line is the Automotive average. Past it, 10w40 Motor Oil is stronger. Inside it, weaker.
Market
The 10w40 Motor Oil market on Amazon at a glance
Shoppers on Amazon United States searched for 10w40 Motor Oil 288K times last year and spent an estimated $552K. The top 5 brands take 91% of clicks. Demand peaks in Apr–May. Flapen scores it 53 out of 100, a Maybe.
01 · Demand
An estimated 7.2% of those searches ended in a purchase.
Shoppers searched for this 288K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 7.2% of those searches ended in a purchase. Searches in the last 90 days moved +31.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $552K a year.
- Searches, last 12 months
- 288K
- Growth, 90 days vs prior 90
- +31.6%
- Conversion, latest week
- 7.2%
- Market size, estimated
- $552Ka year
- Peak month
- April2.1× the quietest month
- Top search term
- 10w40 motor oil73K searches a year
02 · Price
A sale here is worth $26.46.
Listings sell for $26.46 on average, from $6.47 to $64.15. Amazon reports units sold in ranges. This niche sold 25K to 30K a year. The average listing sells 1,000 to 1,250 of them. At $26.46 that is $26K to $33K a year per listing.
- Average price
- $26.46inside the $15 to $100 sweet spot
- Price range
- $6.47–$64.15
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 25K–30K
- Units per listing a year
- 1,000–1,250
- Revenue per listing a year
- $26K–$33K
- Returns
- 0.5%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
68% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 0.3% of listings are out of stock. The average listing ranks #56 within Oils & Fluids. It carries 2,922 reviews at 4.79 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 68%
- Prime listings
- 95%
- Out of stock, average day
- 0.3%
- Average rank
- #56in Oils & Fluids
- Average rating
- 4.79 starsAmazon United States average 4.42 stars
- Average reviews
- 2,922per listing
- Listings tracked
- 22
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 92 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 92 months
Products
Top 10w40 Motor Oil products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 9, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Valvoline High Mileage with MaxLife Technology SAE 10W-40 Synthetic Blend Motor Oil 5 QT
- Price
- $19.89
- Rating
- 4.8/5
- Reviews
- 28,037
- Age
- 13y ago

Mobil 1 High Mileage Full Synthetic Motor Oil 10W-40 5 Quart
- Price
- $26.07
- Rating
- 4.8/5
- Reviews
- 1,719
- Age
- 9y ago

Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil 5 Quarts
- Price
- $20.69
- Rating
- 4.8/5
- Reviews
- 3,863
- Age
- 12y ago

Castrol GTX 10W-40 Conventional Motor Oil 5 Quarts
- Price
- $23.19
- Rating
- 4.8/5
- Reviews
- 1,862
- Age
- 12y ago

Valvoline 4-Stroke Motorcycle Full Synthetic 10W-40 Motor Oil 1 Quart
- Price
- $10.03
- Rating
- 4.8/5
- Reviews
- 3,136
- Age
- 12y ago
Trending
estimated 90-day click momentum
Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil 5 Quarts
- Price
- $16.83
- Rating
- 4.8/5
- Reviews
- 3,463
- Age
- 12y ago

Pennzoil High Mileage 10W-40 Motor Oil 5 Quart
- Price
- $21.75
- Rating
- 4.7/5
- Reviews
- 558
- Age
- 9y ago

Valvoline 4-Stroke Motorcycle 10W-40 Motor Oil 1 Quart
- Price
- $6.47
- Rating
- 4.8/5
- Reviews
- 658
- Age
- 14y ago

Castrol GTX High Mileage 10W-40 Synthetic Motor Oil 1 Quart Pack of 6
- Price
- $40.47
- Rating
- 4.8/5
- Reviews
- 3,863
- Age
- 18y ago

Kawasaki K-Tech SAE 10W-40 Engine Oil Quart #99969-6296
- Price
- $11.08
- Rating
- 4.8/5
- Reviews
- 941
- Age
- 10y ago
Newest
by launch date
Valvoline 4-Stroke Motorcycle Full Synthetic SAE 10W-40 Motor Oil 1 QT Case of 6
- Price
- $51.91
- Rating
- 4.8/5
- Reviews
- 3,136
- Age
- 6y ago

STP Premium Synthetic Blend 4 Cycle Small Engine Oil SAE 10w30 Motor Oil for Lawnmowers Generators Tractors Snow Blowers and More 32 fl oz
- Price
- $11.00
- Rating
- 4.8/5
- Reviews
- 3,439
- Age
- 7y ago

Pack of 5 Kawasaki 99969-6296 Genuine OEM K-Tech SAE 10W-40 4-Cycle Engine Oil
- Price
- $34.84
- Rating
- 4.9/5
- Reviews
- 2,103
- Age
- 7y ago

Valvoline Daily Protection 10W-40 Conventional Motor Oil 5 QT (Packaging May Vary)
- Price
- $24.96
- Rating
- 4.8/5
- Reviews
- 576
- Age
- 7y ago

TRIAX XTerra 4T 10W-40 Full Synthetic 4 Stroke Engine Oil | For Motorcycles ATVs Quads & Snowmobiles | Exceeds JASO MA2 & API SL/SM/SN | True All Season | Race Ready (1 Gallon)
- Price
- $35.13
- Rating
- 4.8/5
- Reviews
- 370
- Age
- 7y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 69% of clicks. Leaders hold, but buyers still shop past them.
Brands
10 rising
Sellers
130
Est. top-5 brand share
91%
Top 20: 100%
Est. top-5 click share
69%
Top 20: 98%
Open market
6%
- Valvoline39%
- Castrol28%
- Mobil17%
- Pennzoil5%
- Lucas Oil3%
- Kawasaki3%
- Open — no brand owns it (4 brands, 6%)
Demand
10w40 Motor Oil search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, May · busiest ÷ quietest = 2.1×
Search terms
Top 10w40 Motor Oil search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 10w40 motor oil73K/yr
- 10w4035K/yr
- 10w40 synthetic motor oil30K/yr
- 10w40 full synthetic oil15K/yr
- 10w-40 full synthetic oil15K/yr
- 10w-4013K/yr
- motor oil 10w-409K/yr
- mobil 1 10w40 full synthetic oil10K/yr
- castrol 10w4012K/yr
- 10w 40 full synthetic motor oil10K/yr
Reviews and returns
What reviews say buyers love and hate about 10w40 Motor Oil
We read the reviews and the return reasons for every product selling here.
“a couple dollars cheaper here”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 10w40 Motor Oil questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









