Heet
FailThe top 5 brands take 100% of clicks, so Heet is a Fail.
- Flapen Score
- 38 / 100Ranks 6,359 of 7,287 Automotive niches · −11 vs the category median of 4938
- Market size
- $149K/yr68K searches / yr
- 90-day growth
- -48.9%search demand this quarter
- Competition
- 84%top-5 click share · 5 brands · 103 sellers
Flapen Score
Heet against its category
The dotted line is the Automotive average. Past it, Heet is stronger. Inside it, weaker.
Market
The Heet market on Amazon at a glance
Shoppers on Amazon United States searched for Heet 68K times last year and spent an estimated $149K. All 5 brands take every click. Demand peaks in Jan–Feb–Dec. Flapen scores it 38 out of 100, a Fail.
01 · Demand
An estimated 9.9% of those searches ended in a purchase.
Shoppers searched for this 68K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 9.9% of those searches ended in a purchase. Searches in the last 90 days moved -48.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $149K a year.
- Searches, last 12 months
- 68K
- Growth, 90 days vs prior 90
- -48.9%
- Conversion, latest week
- 9.9%
- Market size, estimated
- $149Ka year
- Peak month
- January5.5× the quietest month
- Top search term
- dry gas18K searches a year
02 · Price
A sale here is worth $22.08.
Listings sell for $22.08 on average, from $2.09 to $75.87. Amazon reports units sold in ranges. This niche sold 25K to 30K a year. The average listing sells 3,000 to 4,000 of them. At $22.08 that is $66K to $88K a year per listing.
- Average price
- $22.08inside the $15 to $100 sweet spot
- Price range
- $2.09–$75.87
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 25K–30K
- Units per listing a year
- 3,000–4,000
- Revenue per listing a year
- $66K–$88K
- Returns
- 0.2%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
50% of listings pay for placement with sponsored ads. 90% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #136 within Oils & Fluids. It carries 2,531 reviews at 4.63 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 50%
- Prime listings
- 90%
- Out of stock, average day
- 0.0%
- Average rank
- #136in Oils & Fluids
- Average rating
- 4.63 starsAmazon United States average 4.42 stars
- Average reviews
- 2,531per listing
- Listings tracked
- 10
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 100 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
- 100 months
Products
Top Heet 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
HEET Water Remover & Gas Line Antifreeze 12 oz
- Price
- $2.09
- Rating
- 4.8/5
- Reviews
- 3,248
- Age
- 18y ago

Heet Iso-HEET Water Remover And Premium Fuel Line Antifreeze + Injector Cleaner Helps Increase Gas Mileage Improves Engine Performance Year Round Performance 12 fl. oz. (28202) Red
- Price
- $2.83
- Rating
- 4.7/5
- Reviews
- 3,338
- Age
- 20y ago

Iso-HEET Water Remover And Premium Fuel Line Antifreeze + Injector Cleaner - Helps Increase Gas Mileage - Improves Engine Performance - Year Round Performance 12 fl. oz. (28202-24PK)
- Price
- $75.87
- Rating
- 4.7/5
- Reviews
- 129
- Age
- 13y ago

STA-BIL Fast Fix Small Engine Treatment 8 oz Treats 20 Gallons Fixes Rough Running Engines Carburetor & Fuel Injector Cleaner Removes Water For Lawn Mowers & Small Engines
- Price
- $9.59
- Rating
- 4.6/5
- Reviews
- 6,737
- Age
- 6y ago

STA-BIL 360 Marine Fuel System Treatment 32 oz
- Price
- $22.25
- Rating
- 4.8/5
- Reviews
- 8,043
- Age
- 18y ago
Trending
estimated 90-day click momentum
STA-BIL 360 Marine Fuel System Treatment 32 oz
- Price
- $22.25
- Rating
- 4.8/5
- Reviews
- 8,043
- Age
- 18y ago

HEET 28201-24PK Gas Line Antifreeze and Water Remover 12 Fl oz. (Pack of 24)
- Price
- $50.35
- Rating
- 4.8/5
- Reviews
- 3,248
- Age
- 13y ago

(18027G) Gas Treatment - 12 OZ.
- Price
- $9.04
- Rating
- 4.7/5
- Reviews
- 45
- Age
- 14y ago

STA-BIL Fast Fix Small Engine Treatment 8 oz Treats 20 Gallons Fixes Rough Running Engines Carburetor & Fuel Injector Cleaner Removes Water For Lawn Mowers & Small Engines
- Price
- $9.59
- Rating
- 4.6/5
- Reviews
- 6,737
- Age
- 6y ago

Gold Eagle ISO HEET Gas LINE Anti FREES-12 OZ. (REPL. HA55360)
- Price
- $11.45
- Rating
- 4.0/5
- Reviews
- 22
- Age
- 18y ago
Newest
by launch date
STA-BIL Fast Fix Small Engine Treatment 8 oz Treats 20 Gallons Fixes Rough Running Engines Carburetor & Fuel Injector Cleaner Removes Water For Lawn Mowers & Small Engines
- Price
- $9.59
- Rating
- 4.6/5
- Reviews
- 6,737
- Age
- 6y ago

STP Water Remover All Season Cleaner for Cars & Truck Bottles 5.25 Fl Oz Pack of 12 78572-12PK
- Price
- $30.37
- Rating
- 4.6/5
- Reviews
- 154
- Age
- 13y ago

Iso-HEET Water Remover And Premium Fuel Line Antifreeze + Injector Cleaner - Helps Increase Gas Mileage - Improves Engine Performance - Year Round Performance 12 fl. oz. (28202-24PK)
- Price
- $75.87
- Rating
- 4.7/5
- Reviews
- 129
- Age
- 13y ago

HEET 28201-24PK Gas Line Antifreeze and Water Remover 12 Fl oz. (Pack of 24)
- Price
- $50.35
- Rating
- 4.8/5
- Reviews
- 3,248
- Age
- 13y ago

(18027G) Gas Treatment - 12 OZ.
- Price
- $9.04
- Rating
- 4.7/5
- Reviews
- 45
- Age
- 14y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 84% of clicks. A locked shelf that new listings rarely crack.
Brands
5 rising
Sellers
103
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
84%
Top 20: 100%
Open market
0%
- Heet69%
- STA-BIL12%
- Iso-HEET9%
- STP8%
- Gold Eagle3%
Demand
Heet search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Feb, Dec · busiest ÷ quietest = 5.5×
Search terms
Top Heet search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- dry gas18K/yr
- heet fuel additive30K/yr
- dry gas water remover8K/yr
- iso heet4K/yr
- dry gas for car4K/yr
- dry gas fuel additive3K/yr
- water remover for gas tank688/yr
Reviews and returns
What reviews say buyers love and hate about Heet
We read the reviews and the return reasons for every product selling here.
“Dont seem to work very well for me”
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.
19 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 Heet 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









