oil stop leak
Worth a lookShows low returns (0.5%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Conversion
Incredible12.1%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$23.47avg listing price — sweet spot $15–$100
Price range
Great$6.88–$67.82cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$833K$833K/yr · 293K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Bad4,021.91avg incumbent reviews — the moat a new listing must climb
Growth
Bad-14.8%90-day search growth — must beat 0% to launch
Competition
Bad83%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, oil stop leak is a $833K/yr Amazon United States market (293K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Feb–Mar. Verdict: Worth a look — 50/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
oil stop leak market data
- Units sold / yr
- 30K–40K
- avg 3,000–4,000/product
- Revenue / yr
- $704K–$939K
- units × avg price
- Conversion rate
- 12.1%
- Avg BSR
- #75
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 82 months
- Avg seller age
- 153 days
Competition & brand share
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 rising
Sellers
98
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
83%
Top 20: 100%
Open market
0%
- atp automotive66%
- Lucas Oil20%
- Bar's Leaks5%
- STP5%
- XADO4%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -14.8% search growth over the last 90 days.Peak months: Feb, Mar · busiest ÷ quietest = 2.0×
Top oil stop leak search terms
- at-205 re-seal26K/yr
- oil stop leak30K/yr
- at 205 reseal30K/yr
- atp at-205 re-seal21K/yr
- at205 re-seal21K/yr
- at 20518K/yr
- lucas oil stop leak18K/yr
- engine oil stop leak18K/yr
- oil leak sealer22K/yr
- oil leak stop10K/yr
Top oil stop leak 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.
All 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
ATP Automotive AT-205 Re-Seal Stops Leaks 8 Ounce Bottle 1-Pack
atp automotive$21.014.5★21,809 rev
ATP Automotive AT-205 Re-Seal Stops Leaks 8 Ounce Bottle (2 Pack)
atp automotive$37.994.6★706 rev
Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart
Lucas Oil$12.044.6★1,346 rev
Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart
Lucas Oil$11.684.5★6,446 rev
STP High Mileage Oil Treatment + Stop Leak - 15 FL OZ
STP$6.884.6★1,901 rev
Newest
by launch date
Lucas Oil 11100 Engine Oil Stop Leak - Top Off Additive - 1 Quart
Lucas Oil$13.07267 rev
ATP Automotive AT-205 Re-Seal Stops Leaks 8 Ounce Bottle (2 Pack)
atp automotive$37.99706 rev
Bars Leaks OS-1 Oil Seal Engine Oil Burning and Leak Repair 16.9 oz.
Bar's Leaks$20.083,836 rev
AT-205 ATP Re-Seal Leak Stopper 8 Ounce - 4 Pack
atp automotive$67.821,019 rev
Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart
Lucas Oil$12.041,346 rev
Trending
90-day click momentumATP Automotive AT-205 Re-Seal Stops Leaks 8 Ounce Bottle (2 Pack)
atp automotive$37.994.6★
Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart
Lucas Oil$11.684.5★
STP High Mileage Oil Treatment + Stop Leak - 15 FL OZ
STP$6.884.6★
XADO ATOMEX Oil Additive Stop Leak Engine - Restore Seal and Gaskets Treatment for Car Engine High Mileage or Rear Main Seal Best Stopper Leaks Reseal (Bottle 250 ml)
XADO$21.934.2★
Lucas Oil 11100 Engine Oil Stop Leak - Top Off Additive - 1 Quart
Lucas Oil$13.074.6★
What buyers say about oil stop leak
What buyers praise and complain about, mined from review topics.What buyers love
“No more leaks”
“Good quality”
“Very functional”
“Good price”
“Works as advertised”
“Easy to use”
“It works, if you're not gushing oil”
“It seems to genuinely assist with leaks around the filter area”
“Saved me from hours of work to fix it”
“cleanliness is good”
What buyers complain about
“Oil leak”
“Did absolutely Nothing”
“It is now costing me $4,000 to get the thing rebuilt instead of just replacing a $50 seal”
“Oil level dropped in between max”
“There is no miracle repair”
“It did not work as they claims”
“changed filter I hope I did not damaged my engine”
“Noises when away”
“If I gave it a grade it would be a F+ Did not help at all”
“Can't be easier than that”
Top return reasons
Common questions
- Is oil stop leak profitable to sell on Amazon United States?
- The niche generates $833K/yr across 11 tracked products. 90-day search growth is -14.8%. Flapen's verdict: Worth a look (50/100).
- How competitive is the oil stop leak niche?
- 5 brands and 98 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in oil stop leak?
- Top complaints mined from reviews: Leak-Proof, Functionality-Overall, Value For Money. The return rate is 0.5%.
- When does demand for oil stop leak peak?
- Demand peaks in Feb–Mar; the busiest month runs 2.0× the quietest.
- What does it cost to enter the oil stop leak niche?
- Listings span $6.88–$67.82; the average listing price is $23.47 (sweet spot $15–$100). The average incumbent carries 4,022 reviews — the moat a new listing must climb.