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onan generator oil

Skip it26/100

a concentrated shelf (top 5 take 100% of clicks) — onan generator oil doesn't clear our bar today.

Market/yr

$41K

Growth (1y)

+39.1%

Products

4

Brands

2

was 3 a year ago

Sellers

33

Price range

$16.24–$53.83

Returns

0.5%

Rating

4.8★

26/100

Skip it

Scored 26/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
2
×0.30
Growth
47
×0.30
Competition
0
×0.20
Quality gap
20
×0.10
Returns
96
×0.10

Demand

Weekly Amazon search volume, last 58 weeks — +39.1% year over year.
303151.5Spike '25Spike '26Jun '25Aug '25Oct '25Dec '25Feb '26Apr '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: Jun, Jul, Aug · busiest ÷ quietest = 2.7×

Competition

93%Cummins
  • Cummins93%
  • RV Wholesale Direct7%

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack. 2 brands and 33 sellers compete here.

Brands

2 falling

was 3 a year ago

Sellers

33

Top 5 brand share

100%

#ProductBrandPriceRatingReviewsClick shareTrend
1Cummins$16.244.8★1,05866%rising
3RV Wholesale Direct$53.834.8★187%rising

Product shelf

Reviews

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

What buyers love

Quality-Overall31%

“Top quality”

Value For Money25%

“Great price”

Correct Contents13%

“Perfect quantity”

Lubrication13%

“Using the manufacturer-recommended oil just makes sense”

Motor Power13%

“High-quality makes my generator run really good”

Advertised Vs Actual Product6%

“Exactly what I needed”

What buyers complain about

Top return reasons

  • Leak-Proof46%
  • Assembly/Installation15%
  • Lubrication15%
  • Maintenance And Repair8%
  • Advertised Vs Actual Product8%
  • Value For Money8%

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