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starting fluid

Skip it43/100

a concentrated shelf (top 5 take 86% of clicks) — starting fluid doesn't clear our bar today.

Market/yr

$710K

Growth (1y)

+150.6%

Products

9

Brands

6

was 5 a year ago

Sellers

68

Price range

$5.28–$41.04

Returns

0.2%

Rating

4.7★

43/100

Skip it

Scored 43/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
28
×0.30
Growth
71
×0.30
Competition
6
×0.20
Quality gap
20
×0.10
Returns
99
×0.10

Demand

Weekly Amazon search volume, last 104 weeks — +150.6% year over year.
13K7KSpike '24Spike '25Holiday '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: Apr, May · busiest ÷ quietest = 1.6×

Competition

59%STA-BIL
  • STA-BIL59%
  • Valvoline15%
  • Gumout9%
  • Johnsen's8%
  • Lucas Oil6%
  • MPD3%
  • Other0%

The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack. 6 brands and 68 sellers compete here.

Brands

6 rising

was 5 a year ago

Sellers

68

Top 5 brand share

97%

Product shelf

All 9 tracked products in this niche.

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall22%

“Excellent Product as advertised”

Efficiency20%

“works like advertised”

Advertised Vs Actual Product12%

“Works As intended”

Value For Money12%

“Definitely worth the money”

Lubrication6%

“I like that it includes an upper cylinder lubricant”

Ease Of Cleaning5%

“Cleaned out my lawnmower engine within minutes”

Fuel Efficiency3%

“This stuff actually works put in proper amount with fresh gas”

Ease Of Use3%

“It is easy to use”

Strength2%

“more powerful than ever”

Functionality-Overall2%

“HIS STUFF WORKS GREAT”

What buyers complain about

Functionality-Overall41%

“Didnt quite work for my case”

Quality-Overall9%

“Garbage”

Ease Of Cleaning5%

“I personally don't use this for cleaning”

Maintenance And Repair4%

“Didnt fix anything waste of money not happy”

Motor Issues4%

“the motor slowly went from lousy to purring. after about 10 restarts from the get-go”

Ease Of Use4%

“anyway, it was running really rough with it being hard to start”

Leak-Proof3%

“Cap doesn't prevent it from leaking”

Adhesion/Stickiness2%

“it makes a sticky mess”

Fuel Efficiency2%

“troubleshooting fuel delivery problems”

Strength2%

“Weak starter”

Top return reasons

  • Functionality-Overall22%
  • Leak-Proof20%
  • Compatibility-Overall15%
  • Fuel Efficiency8%
  • Motor Issues8%
  • Value For Money6%
  • Size-Overall6%
  • Advertised Vs Actual Product5%
  • Defective Material/Parts3%
  • Maintenance And Repair1%

Data scraped July 9, 2026 · Marketplace baseline: 4.4★ avg rating · $22.74 median price · 2.2% median returns across 13,649 tracked niches.