---
title: "Mercury Quickleen — $45K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/mercury-quickleen"
last_updated: "2026-08-10T20:26:26.849Z"
locale: en
meta:
description: "Niche score 46/100 · $45K/yr market · 12K searches/yr · $25.18 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $45K/yr market · 12K searches/yr · $25.18 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Mercury Quickleen — $45K/yr Amazon US Niche (2026) - Flapen"
---
# **mercury quickleen**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 11Growth 77Conversion 97Competition 0Returns 99Price range 93Avg price 95Brand share 0Review moat 43Quality gap 16
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****14.9%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$25.18**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$14.44–$39.29**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Great****+64.6%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****2,177.4**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$45K**
$45K/yr · 12K searches
**Competition**
**Bad****100%**
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, mercury quickleen is a $45K/yr Amazon United States market (12K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–Aug–Sep. Verdict: Skip it — 46/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mercury quickleen market data**
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$38K–$50K**
- units × avg price
- **Conversion rate**
- **14.9%**
- **Avg BSR**
- **#35**
- **Page quality**
- **0%**
- **Prime**
- **80%**
- **Sponsored**
- **80%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **98 months**
- **Avg seller age**
- **186 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▲rising
**Sellers**
**73**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- MERCURY51% - Quicksilver36% - STA-BIL12%
## **Demand & seasonality**
Weekly Amazon search volume, last 56 weeks — +64.6% search growth over the last 90 days.
500300Prime Day '25Spike '25Spike '26 seasonJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Apr, Aug, Sep · busiest ÷ quietest = 3.4×
[**Open Trend **](https://flapen.com/research/us/automotive/mercury-quickleen/trend)
## **Top mercury quickleen 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%10%$5K20%$9K30%$14K40%$18K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 5 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Mercury 8M0058691 Quickleen Engine & Fuel System Cleaner 32 oz**MERCURY**$39.29**4.7★98 rev](https://www.amazon.com/dp/B015EU8LW4) [2**Quicksilver 8M0047921 Quickleen Engine & Fuel System Cleaner 12 Oz.**Quicksilver**$14.44**4.7★956 rev](https://www.amazon.com/dp/B005S4HQXC) [3**Mercury 8M0047931 Quickleen Engine & Fuel System Cleaner 12 oz**MERCURY**$19.94**4.8★834 rev](https://www.amazon.com/dp/B003ZF1GJQ) [4**STA-BIL 360 Marine Fuel System Treatment 32 oz**STA-BIL**$22.25**4.8★8,043 rev](https://www.amazon.com/dp/B001CAW2DK) [5**Quicksilver 8M0058681 Quickleen Engine and Fuel System Cleaner 32 Oz.**Quicksilver**$30.00**4.7★956 rev](https://www.amazon.com/dp/B00BO8A2P0)
### **Newest**
by launch date
[**Mercury 8M0058691 Quickleen Engine & Fuel System Cleaner 32 oz**MERCURY**$39.29**98 rev11y ago](https://www.amazon.com/dp/B015EU8LW4) [**Quicksilver 8M0058681 Quickleen Engine and Fuel System Cleaner 32 Oz.**Quicksilver**$30.00**956 rev13y ago](https://www.amazon.com/dp/B00BO8A2P0) [**Quicksilver 8M0047921 Quickleen Engine & Fuel System Cleaner 12 Oz.**Quicksilver**$14.44**956 rev14y ago](https://www.amazon.com/dp/B005S4HQXC) [**Mercury 8M0047931 Quickleen Engine & Fuel System Cleaner 12 oz**MERCURY**$19.94**834 rev15y ago](https://www.amazon.com/dp/B003ZF1GJQ) [**STA-BIL 360 Marine Fuel System Treatment 32 oz**STA-BIL**$22.25**8,043 rev18y ago](https://www.amazon.com/dp/B001CAW2DK)
### **Trending**
90-day click momentum
[**STA-BIL 360 Marine Fuel System Treatment 32 oz**STA-BIL**$22.25**4.8★**▲ 138%**](https://www.amazon.com/dp/B001CAW2DK) [**Quicksilver 8M0047921 Quickleen Engine & Fuel System Cleaner 12 Oz.**Quicksilver**$14.44**4.7★**▲ 14%**](https://www.amazon.com/dp/B005S4HQXC) [**Mercury 8M0058691 Quickleen Engine & Fuel System Cleaner 32 oz**MERCURY**$39.29**4.7★**— 5%**](https://www.amazon.com/dp/B015EU8LW4) [**Mercury 8M0047931 Quickleen Engine & Fuel System Cleaner 12 oz**MERCURY**$19.94**4.8★**▼ 22%**](https://www.amazon.com/dp/B003ZF1GJQ) [**Quicksilver 8M0058681 Quickleen Engine and Fuel System Cleaner 32 Oz.**Quicksilver**$30.00**4.7★**▼ 25%**](https://www.amazon.com/dp/B00BO8A2P0)
## **What buyers say about mercury quickleen**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**28%
*“Excellent product”*
**Advertised Vs Actual Product**13%
*“Works as advertised”*
**Ease Of Cleaning**9%
*“spark plugs run cleaner”*
**Efficiency**6%
*“Works great”*
**Fuel Efficiency**6%
*“Good fuel treatment”*
**Product Condition**6%
*“Make run like new”*
**Carbon Footprint**6%
*“Helps with Carbon Buildup”*
**Motor Power**6%
*“Increases motor efficiency”*
**Value For Money**6%
*“The Gallon is the best value”*
**Measurement/Reading Accuracy**6%
*“Bottle is perfect for measuring out the right amount”*
### **What buyers complain about **
**Leak-Proof**100%
*“the product leaked out”*
### **Top return reasons **
**Leak-Proof**38%
**Value For Money**31%
**Size-Overall**19%
**Functionality-Overall**8%
**Advertised Vs Actual Product**4%
## **Common questions**
- **Is mercury quickleen profitable to sell on Amazon United States?**
- The niche generates $45K/yr across 5 tracked products. 90-day search growth is +64.6%. Flapen's verdict: Skip it (46/100).
- **How competitive is the mercury quickleen niche?**
- 3 brands and 73 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in mercury quickleen?**
- Top complaints mined from reviews: Leak-Proof. The return rate is 0.3%.
- **When does demand for mercury quickleen peak?**
- Demand peaks in Apr–Aug–Sep; the busiest month runs 3.4× the quietest.
- **What does it cost to enter the mercury quickleen niche?**
- Listings span $14.44–$39.29; the average listing price is $25.18 (sweet spot $15–$100). The average incumbent carries 2,177 reviews — the moat a new listing must climb.
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