---
title: "Engine Oil Dye — $175K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/engine-oil-dye"
last_updated: "2026-08-11T00:33:35.871Z"
locale: en
meta:
description: "Niche score 44/100 · $175K/yr market · 73K searches/yr · $18.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $175K/yr market · 73K searches/yr · $18.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Engine Oil Dye — $175K/yr Amazon US Niche (2026) - Flapen"
---
# **engine oil dye**
**Skip it**
A concentrated shelf (top 5 take 89% of clicks) — this niche doesn't clear our bar today.
Market size 36Growth 16Conversion 95Competition 9Returns 86Price range 72Avg price 85Brand share 20Review moat 65Quality gap 37
**Conversion**
**Incredible****12.7%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.5%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$18.88**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$7.59–$33.87**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****884.75**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$175K**
$175K/yr · 73K searches
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Growth**
**Bad****-18.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****89%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, engine oil dye is a $175K/yr Amazon United States market (73K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in Mar. Verdict: Skip it — 44/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **engine oil dye market data**
- **Units sold / yr**
- **10K–13K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **$189K–$236K**
- units × avg price
- **Conversion rate**
- **12.7%**
- **Avg BSR**
- **#34**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **4.8%**
- **Avg brand age**
- **83 months**
- **Avg seller age**
- **165 days**
## **Competition & brand share**
The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **—flat
**Sellers**
**56**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**89%**
Top 20: 100%
**Open market**
**3%**
- A/C Pro46% - TSI Supercool17% - Yesibeike14% - LEAKFINDER8% - TRACER6% - ACDelco5% - Open — no brand owns it (1 brand, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -18.6% search growth over the last 90 days.
2K1KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/automotive/engine-oil-dye/trend)
## **Top engine oil dye search terms**
- **engine oil dye**18K/yr-14.4%10.5% conv. - **oil dye**13K/yr-4.6%10.3% conv. - **oil leak dye**11K/yr-6.4%11.3% conv. - **uv dye for oil leak**11K/yr-31.1%11.6% conv. - **oil uv dye**4K/yr-13.9%13.5% conv. - **uv oil dye**4K/yr-28.0%14.5% conv. - **engine oil uv dye**3K/yr-26.5%14.2% conv. - **engine oil leak dye**3K/yr-27.3%10.7% conv. - **oil dye leak detection**5K/yr-57.5%12.2% conv. [**All search terms **](https://flapen.com/research/us/automotive/engine-oil-dye/search-terms)
## **Top engine oil dye 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%$26K30%$52K45%$79K60%$105K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal**A/C Pro**$7.59**4.5★2,547 rev](https://www.amazon.com/dp/B002M4G24U) [2**Yesibeike Oil-Based UV Leak Detection Dye 150 ml for Dirty Engine Oil Precision Nozzle Works with Engine Oil ATF Fuel & Hydraulic Systems Low Odor Tamper-Evident Foil Seal**Yesibeike**$14.32**4.1★27 rev](https://www.amazon.com/dp/B0GCB539MF) [3**TSI Supercool TD8 Total Dye 8 oz (Self Measure Bottle)**TSI Supercool**$24.98**4.6★964 rev](https://www.amazon.com/dp/B008PKWH6C) [4**LEAKFINDER LF2008 Automotive Oil-Based Fluid Leak Detection Dye for Oil Fuel ATF and Power Steering Systems 8oz Ultraviolet Fluorescent Dye Twin-Neck Bottle Services up to 8 Vehicles**LEAKFINDER**$33.87**4.5★104 rev](https://www.amazon.com/dp/B07D2MD6N9) [5**Tracer Products TP-3090-0601 Gas Engine Oil dye 1 Pack**TRACER**$27.35**4.5★215 rev](https://www.amazon.com/dp/B005P3FHQO)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Yesibeike Oil-Based UV Leak Detection Dye 150 ml for Dirty Engine Oil Precision Nozzle Works with Engine Oil ATF Fuel & Hydraulic Systems Low Odor Tamper-Evident Foil Seal**Yesibeike**$14.32**27 rev6mo ago](https://www.amazon.com/dp/B0GCB539MF) [**Lichamp AC Leak Detector Kit Automotive UV Oil Dye Leak Detection Kit Includes AC UV Light and Protective Glasses LA01**Lichamp**$19.00**297 rev3y ago](https://www.amazon.com/dp/B0B43333G5) [**LEAKFINDER LF2008 Automotive Oil-Based Fluid Leak Detection Dye for Oil Fuel ATF and Power Steering Systems 8oz Ultraviolet Fluorescent Dye Twin-Neck Bottle Services up to 8 Vehicles**LEAKFINDER**$33.87**104 rev8y ago](https://www.amazon.com/dp/B07D2MD6N9) [**TSI Supercool TD8 Total Dye 8 oz (Self Measure Bottle)**TSI Supercool**$24.98**964 rev13y ago](https://www.amazon.com/dp/B008PKWH6C) [**TSI Supercool P46-8D PAG Oil 46 Viscosity with UV Dye 8oz 1-Pack**TSI Supercool**$9.33**1,974 rev13y ago](https://www.amazon.com/dp/B008PKWD3O)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Yesibeike Oil-Based UV Leak Detection Dye 150 ml for Dirty Engine Oil Precision Nozzle Works with Engine Oil ATF Fuel & Hydraulic Systems Low Odor Tamper-Evident Foil Seal**Yesibeike**$14.32**4.1★**▲ 183%**](https://www.amazon.com/dp/B0GCB539MF) [**TSI Supercool P46-8D PAG Oil 46 Viscosity with UV Dye 8oz 1-Pack**TSI Supercool**$9.33**4.8★**▲ 22%**](https://www.amazon.com/dp/B008PKWD3O) [**ACDelco 1148963 GM Original Equipment 10-5045 Multi-Purpose Fluorescent Leak Detection Dye - 1 oz**ACDelco**$14.61**4.6★**▲ 10%**](https://www.amazon.com/dp/B008I2VPC4) [**LEAKFINDER LF2008 Automotive Oil-Based Fluid Leak Detection Dye for Oil Fuel ATF and Power Steering Systems 8oz Ultraviolet Fluorescent Dye Twin-Neck Bottle Services up to 8 Vehicles**LEAKFINDER**$33.87**4.5★**— 7%**](https://www.amazon.com/dp/B07D2MD6N9) [**Tracer Products TP-3090-0601 Gas Engine Oil dye 1 Pack**TRACER**$27.35**4.5★**▼ 12%**](https://www.amazon.com/dp/B005P3FHQO)
**~~View all trending →~~**
## **What buyers say about engine oil dye**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Leak-Proof**31%
*“Helped find a leak”*
**Quality-Overall**18%
*“Good Quality”*
**Advertised Vs Actual Product**10%
*“as advertised”*
**Value For Money**9%
*“Great value for the money to help keep the bike on the road”*
**Ease Of Use**6%
*“Ease of use”*
**Efficiency**6%
*“Works perfectly”*
**Brightness/Shine/Glow**5%
*“it lit up brightly”*
**Lubrication**5%
*“Also helps detecting oil level on the front axle with a. YELLOW”*
**Color**4%
*“Definitely worth it to say to customer hey we want to put this dye in your car”*
**Night Vision**1%
*“quite visible at night”*
### **What buyers complain about **
**Leak-Proof**28%
*“And I have a huge leak”*
**Brightness/Shine/Glow**11%
*“My only wish is that it glowed more”*
**Color**9%
*“2 bottles and the dye is invisible”*
**Functionality-Overall**7%
*“my bottle definitely did not work or they have batch issues with their product”*
**Ease Of Use**7%
*“It is very tight to insert them”*
**Instructions/User Manual/Troubleshooting**4%
*“no instructions”*
**Value For Money**2%
*“Waste of money”*
**Lubrication**2%
*“Doesn't work when added to oil”*
### **Top return reasons **
**Compatibility-Overall**24%
**Leak-Proof**22%
**Color**9%
**Advertised Vs Actual Product**8%
**Functionality-Overall**6%
**Value For Money**6%
**Display Colors**4%
**Size-Overall**3%
**Defective Material/Parts**2%
**Coolant**2%
## **Common questions**
- **Is engine oil dye profitable to sell on Amazon United States?**
- The niche generates $175K/yr across 8 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -18.6%. Flapen's verdict: Skip it (44/100).
- **How competitive is the engine oil dye niche?**
- 7 brands and 56 sellers compete. The top 5 products take 89% of clicks and top 5 brands hold 92% of demand.
- **What do buyers complain about in engine oil dye?**
- Top complaints mined from reviews: Leak-Proof, Brightness/Shine/Glow, Color. The return rate is 1.5%.
- **When does demand for engine oil dye peak?**
- Demand peaks in Mar; the busiest month runs 1.5× the quietest.
- **What does it cost to enter the engine oil dye niche?**
- Listings span $7.59–$33.87; the average listing price is $18.88 (sweet spot $15–$100). The average incumbent carries 885 reviews — the moat a new listing must climb.
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