---
title: "Oil Stop Leak — $833K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/oil-stop-leak"
last_updated: "2026-08-10T07:18:40.312Z"
locale: en
meta:
description: "Niche score 50/100 · $833K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $833K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Oil Stop Leak — $833K/yr Amazon US Niche (2026) - Flapen"
---
# **oil stop leak**
**Worth a look**
Shows low returns (0.5%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 74Growth 18Conversion 95Competition 14Returns 97Price range 84Avg price 95Brand share 0Review moat 25Quality gap 45
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.1%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$23.47**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$6.88–$67.82**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$833K**
$833K/yr · 293K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****4,021.91**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-14.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
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 ~~](https://flapen.com/research/methodology)
## **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.
8K6KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Mar · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/automotive/oil-stop-leak/trend)
## **Top oil stop leak search terms**
- **at-205 re-seal**26K/yr-4.8%10.6% conv. - **oil stop leak**30K/yr-10.8%7.3% conv. - **at 205 reseal**30K/yr-26.5%12.3% conv. - **atp at-205 re-seal**21K/yr-4.2%15.8% conv. - **at205 re-seal**21K/yr-16.8%10.8% conv. - **at 205**18K/yr-13.3%12.5% conv. - **lucas oil stop leak**18K/yr-14.9%13.9% conv. - **engine oil stop leak**18K/yr-21.7%5.6% conv. - **oil leak sealer**22K/yr-40.8%7.6% conv. - **oil leak stop**10K/yr+46.3%7.3% conv. [**All search terms **](https://flapen.com/research/us/automotive/oil-stop-leak/search-terms)
## **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.
0%15%$125K30%$250K45%$375K60%$500K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**ATP Automotive AT-205 Re-Seal Stops Leaks 8 Ounce Bottle 1-Pack**atp automotive**$21.01**4.5★21,809 rev](https://www.amazon.com/dp/B000NVW1LM) [2**ATP Automotive AT-205 Re-Seal Stops Leaks 8 Ounce Bottle (2 Pack)**atp automotive**$37.99**4.6★706 rev](https://www.amazon.com/dp/B07VCSNJLS) [3**Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart**Lucas Oil**$12.04**4.6★1,346 rev](https://www.amazon.com/dp/B00F96P58C) [4**Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart**Lucas Oil**$11.68**4.5★6,446 rev](https://www.amazon.com/dp/B001KXN3YQ) [5**STP High Mileage Oil Treatment + Stop Leak - 15 FL OZ**STP**$6.88**4.6★1,901 rev](https://www.amazon.com/dp/B00D8OFQUE)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Lucas Oil 11100 Engine Oil Stop Leak - Top Off Additive - 1 Quart**Lucas Oil**$13.07**267 rev6y ago](https://www.amazon.com/dp/B085PXDTMN) [**ATP Automotive AT-205 Re-Seal Stops Leaks 8 Ounce Bottle (2 Pack)**atp automotive**$37.99**706 rev6y ago](https://www.amazon.com/dp/B07VCSNJLS) [**Bars Leaks OS-1 Oil Seal Engine Oil Burning and Leak Repair 16.9 oz.**Bar's Leaks**$20.08**3,836 rev8y ago](https://www.amazon.com/dp/B0764H6K45) [**AT-205 ATP Re-Seal Leak Stopper 8 Ounce - 4 Pack**atp automotive**$67.82**1,019 rev8y ago](https://www.amazon.com/dp/B075DG42JW) [**Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart**Lucas Oil**$12.04**1,346 rev9y ago](https://www.amazon.com/dp/B00F96P58C)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ATP Automotive AT-205 Re-Seal Stops Leaks 8 Ounce Bottle (2 Pack)**atp automotive**$37.99**4.6★**▲ 63%**](https://www.amazon.com/dp/B07VCSNJLS) [**Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart**Lucas Oil**$11.68**4.5★**▲ 62%**](https://www.amazon.com/dp/B001KXN3YQ) [**STP High Mileage Oil Treatment + Stop Leak - 15 FL OZ**STP**$6.88**4.6★**▲ 50%**](https://www.amazon.com/dp/B00D8OFQUE) [**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**$21.93**4.2★**▲ 46%**](https://www.amazon.com/dp/B00KFKOR0Y) [**Lucas Oil 11100 Engine Oil Stop Leak - Top Off Additive - 1 Quart**Lucas Oil**$13.07**4.6★**▲ 12%**](https://www.amazon.com/dp/B085PXDTMN)
**~~View all trending →~~**
## **What buyers say about oil stop leak**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Leak-Proof**35%
*“No more leaks”*
**Quality-Overall**15%
*“Good quality”*
**Efficiency**14%
*“Very functional”*
**Value For Money**7%
*“Good price”*
**Advertised Vs Actual Product**6%
*“Works as advertised”*
**Ease Of Use**3%
*“Easy to use”*
**Lubrication**2%
*“It works, if you're not gushing oil”*
**Filtration**2%
*“It seems to genuinely assist with leaks around the filter area”*
**Maintenance And Repair**2%
*“Saved me from hours of work to fix it”*
**Ease Of Cleaning**1%
*“cleanliness is good”*
### **What buyers complain about **
**Leak-Proof**50%
*“Oil leak”*
**Functionality-Overall**13%
*“Did absolutely Nothing”*
**Value For Money**5%
*“It is now costing me $4,000 to get the thing rebuilt instead of just replacing a $50 seal”*
**Lubrication**3%
*“Oil level dropped in between max”*
**Maintenance And Repair**3%
*“There is no miracle repair”*
**Advertised Vs Actual Product**1%
*“It did not work as they claims”*
**Filtration**1%
*“changed filter I hope I did not damaged my engine”*
**Noise Level**1%
*“Noises when away”*
**Certifications**1%
*“If I gave it a grade it would be a F+ Did not help at all”*
**Ease Of Use**1%
*“Can't be easier than that”*
### **Top return reasons **
**Leak-Proof**39%
**Compatibility-Overall**12%
**Functionality-Overall**11%
**Advertised Vs Actual Product**9%
**Value For Money**9%
**Maintenance And Repair**5%
**Size-Overall**3%
**Motor Issues**2%
**Defective Material/Parts**2%
**Quality-Overall**1%
## **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.
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