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mercury 10w-30 4-stroke marine oil

Skip it40/100

a small market ($78K/yr) — mercury 10w-30 4-stroke marine oil doesn't clear our bar today.

Market/yr

$78K

Growth (1y)

+124.5%

Products

14

Brands

3

was 3 a year ago

Sellers

40

Price range

$11.15–$109.54

Returns

0.5%

Rating

4.8★

40/100

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Scored 40/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
4
×0.30
Growth
68
×0.30
Competition
33
×0.20
Quality gap
20
×0.10
Returns
96
×0.10

Demand

Weekly Amazon search volume, last 104 weeks — +124.5% year over year.
860430Spike '24Spike '25Prime Day '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: Apr, May, Oct · busiest ÷ quietest = 5.1×

Competition

57%MERCURY
  • MERCURY57%
  • Quicksilver40%
  • Valvoline3%

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them. 3 brands and 40 sellers compete here.

Brands

3 flat

was 3 a year ago

Sellers

40

Top 5 brand share

100%

#ProductBrandPriceRatingReviewsClick shareTrend
1Quicksilver$33.514.8★1,37118%falling
12Quicksilver$11.154.8★1,3713%rising

Product shelf

All 14 tracked products in this niche.

Reviews

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

What buyers love

Advertised Vs Actual Product23%

“As advertised”

Quality-Overall21%

“great quality”

Value For Money19%

“good value”

Ease Of Use14%

“Easy to use”

Leak-Proof4%

“No leaks”

Motor Power4%

“Great price for name brand Outboard motor oil”

Lubrication3%

“Excellent oil”

Add-Ons/Attachments2%

“great value, very easy to use and very useful, it came with all accessories needed”

Filtration2%

“Filter fit, oil went in, first time I've changed the oil myself, went well”

Ease Of Cleaning2%

“which helps maintain cleanliness during the process”

What buyers complain about

Size-Overall50%

“It wouldnt fit”

Product Condition11%

“Makes me think i received a returned filter from a previous customer”

Filtration11%

“Filter Didnt appear to have been used though”

Top return reasons

  • Advertised Vs Actual Product31%
  • Size-Overall20%
  • Leak-Proof13%
  • Lubrication11%
  • Value For Money8%
  • Compatibility-Overall5%
  • Defective Material/Parts4%
  • Product Condition1%
  • Filtration1%
  • Ease Of Use1%

Data scraped July 9, 2026 · Marketplace baseline: 4.4★ avg rating · $22.66 median price · 2.2% median returns across 14,418 tracked niches.