Oils & Fluids
MaybeAn estimated 0.6% of orders come back. But the top 5 brands take 98% of clicks, so Oils & Fluids is a Maybe.
- Flapen Score
- 57 / 100Top 17% of 7,287 Automotive niches · +8 vs the category median of 4957
- Market size
- $2.8M/yr1.4M searches / yr
- 90-day growth
- +7.3%search demand this quarter
- Competition
- 50%top-5 click share · 7 brands · 118 sellers
Flapen Score
Oils & Fluids against its category
The dotted line is the Automotive average. Past it, Oils & Fluids is stronger. Inside it, weaker.
Market
The Oils & Fluids market on Amazon at a glance
Shoppers on Amazon United States searched for Oils & Fluids 1.4M times last year and spent an estimated $2.8M. The top 5 brands take 98% of clicks. Demand peaks in Sep–Oct–Nov. Flapen scores it 57 out of 100, a Maybe.
01 · Demand
An estimated 7.3% of those searches ended in a purchase.
Shoppers searched for this 1.4M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 7.3% of those searches ended in a purchase. Searches in the last 90 days moved +7.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $2.8M a year.
- Searches, last 12 months
- 1.4M
- Growth, 90 days vs prior 90
- +7.3%
- Conversion, latest week
- 7.3%
- Market size, estimated
- $2.8Ma year
- Peak month
- October2.1× the quietest month
- Top search term
- 5w-30 full synthetic oil205K searches a year
02 · Price
A sale here is worth $26.82.
Listings sell for $26.82 on average, from $6.37 to $52.50. Amazon reports units sold in ranges. This niche sold 100K to 125K a year. The average listing sells 4,000 to 5,000 of them. At $26.82 that is $107K to $134K a year per listing.
- Average price
- $26.82inside the $15 to $100 sweet spot
- Price range
- $6.37–$52.50
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 100K–125K
- Units per listing a year
- 4,000–5,000
- Revenue per listing a year
- $107K–$134K
- Returns
- 0.6%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. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #20 within Oils & Fluids. It carries 5,771 reviews at 4.82 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 68%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #20in Oils & Fluids
- Average rating
- 4.82 starsAmazon United States average 4.42 stars
- Average reviews
- 5,771per listing
- Listings tracked
- 25
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 94 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
- 94 months
Products
Top Oils & Fluids 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 MaxLife High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quart
- Price
- $20.59
- Rating
- 4.8/5
- Reviews
- 28,037
- Age
- 13y ago

Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil 5 QT
- Price
- $26.88
- Rating
- 4.8/5
- Reviews
- 13,436
- Age
- 12y ago

Mobil 1 Advanced Full Synthetic Motor Oil 5W-30 5 Quart
- Price
- $25.92
- Rating
- 4.8/5
- Reviews
- 7,245
- Age
- 12y ago

Castrol GTX Full Synthetic 5W-30 Motor Oil 5 Quarts
- Price
- $23.38
- Rating
- 4.8/5
- Reviews
- 3,971
- Age
- 4y ago

Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30 5 Quart
- Price
- $26.26
- Rating
- 4.9/5
- Reviews
- 5,438
- Age
- 12y ago
Trending
estimated 90-day click momentum
Pennzoil Platinum Full Synthetic 5W-30 Motor Oil 5 Quart
- Price
- $24.55
- Rating
- 4.8/5
- Reviews
- 8,717
- Age
- 9y ago

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 5W-30 Motor Oil 1 Quart
- Price
- $6.37
- Rating
- 4.8/5
- Reviews
- 2,607
- Age
- 10y ago

Mobil 1 Extended Performance Full Synthetic Motor Oil 5W-30 5 Quart
- Price
- $27.99
- Rating
- 4.8/5
- Reviews
- 5,280
- Age
- 12y ago

Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30 5 Quart
- Price
- $26.26
- Rating
- 4.9/5
- Reviews
- 5,438
- Age
- 12y ago
Newest
by launch date
Havoline Motor Oil 5w30 High Mileage Synthetic Technology Smart Change Engine Oil 5W-30 6 Quarts Pack of 1
- Price
- $23.22
- Rating
- 4.7/5
- Reviews
- 158
- Age
- 1y ago

Valvoline Restore & Protect Full Synthetic 5W-30 Motor Oil 5 Quart
- Price
- $31.01
- Rating
- 4.8/5
- Reviews
- 1,511
- Age
- 2y ago

Valvoline MaxLife Extended Protection High Mileage 5W-30 Full Synthetic Motor Oil 5 Quart
- Price
- $27.28
- Rating
- 4.9/5
- Reviews
- 637
- Age
- 3y ago

Castrol GTX Full Synthetic 5W-30 Motor Oil 5 Quarts
- Price
- $23.38
- Rating
- 4.8/5
- Reviews
- 3,971
- Age
- 4y ago

Valvoline Extended Protection Full Synthetic Motor Oil SAE 5W-30 5 QT
- Price
- $27.52
- Rating
- 4.8/5
- Reviews
- 1,426
- Age
- 5y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 50% of clicks. Leaders hold, but buyers still shop past them.
Brands
7 falling
Sellers
118
Est. top-5 brand share
98%
Top 20: 100%
Est. top-5 click share
50%
Top 20: 95%
Open market
1%
- Valvoline38%
- Castrol26%
- Mobil23%
- Pennzoil10%
- Royal Purple2%
- Liqui Moly1%
- Open — no brand owns it (1 brand, 1%)
Demand
Oils & Fluids search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 2.1×
Search terms
Top Oils & Fluids search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 5w-30 full synthetic oil205K/yr
- 5w30169K/yr
- 5w30 motor oil160K/yr
- oils & fluids179K/yr
- motor oil 5w-30127K/yr
- 5w30 full synthetic oil117K/yr
- 5w 30 full synthetic motor oil89K/yr
- 5w-3068K/yr
- 5w30 oil43K/yr
- oil 5w3033K/yr
Reviews and returns
What reviews say buyers love and hate about Oils & Fluids
We read the reviews and the return reasons for every product selling here.
“arrived leaking”
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.
17 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 Oils & Fluids 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









