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delo 15w40 diesel oil

Skip it42/100

a small market ($35K/yr) — delo 15w40 diesel oil doesn't clear our bar today.

Market/yr

$35K

Growth (1y)

+121.5%

Products

21

Brands

6

was 4 a year ago

Sellers

94

Price range

$14.75–$137.94

Returns

0.5%

Rating

4.6★

42/100

Skip it

Scored 42/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
2
×0.30
Growth
68
×0.30
Competition
44
×0.20
Quality gap
30
×0.10
Returns
96
×0.10

Demand

Weekly Amazon search volume, last 84 weeks — +121.5% year over year.
1K524Spike '25Prime Day '25Spike '26Dec '24Mar '25Jun '25Sep '25Dec '25Apr '26

Seasonality

Monthly demand index across the year — 1.00 is average.

No pronounced peak months · busiest ÷ quietest = 1.5×

Competition

59%Chevron
  • Chevron59%
  • Warren Distribution21%
  • Shell Rotella10%
  • Valvoline7%
  • Generic1%
  • Delo1%
  • Other0%

The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them. 6 brands and 94 sellers compete here.

Brands

6 rising

was 4 a year ago

Sellers

94

Top 5 brand share

99%

#ProductBrandPriceRatingReviewsClick shareTrend
1Warren Distribution$127.813.0★121%rising
14Chevron$30.784.5★692%rising

Product shelf

All 21 tracked products in this niche.

Reviews

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

What buyers love

Value For Money40%

“Great Value”

Lubrication23%

“The best oil for my truck”

Quality-Overall18%

“Quality product”

Advertised Vs Actual Product6%

“Accurate description”

Motor Power3%

“diesel motors works well in my Chevy gas motor”

Fuel Efficiency3%

“Engine runs great”

Efficiency1%

“Works okay”

Friction1%

“lifters survive the extreme friction”

Size-Overall1%

“Perfect size for 93 f250 7.3 oil change”

Leak-Proof1%

“No leaks”

What buyers complain about

Leak-Proof40%

“Gallon containers was leaking when I received them”

Value For Money12%

“expensive now”

Lubrication10%

“If you need to change your oil urgently you should probably no go with this product”

Filtration7%

“Poor fuel filters”

Quality-Overall3%

“Not the best”

Ethical Trade/Fair Trade2%

“Unethical seller”

Advertised Vs Actual Product2%

“This unfortunately is attributed to a LISTING ERROR”

Product Condition2%

“JUST RETIRED”

Top return reasons

  • Leak-Proof50%
  • Lubrication12%
  • Compatibility-Overall9%
  • Advertised Vs Actual Product9%
  • Value For Money7%
  • Defective Material/Parts3%
  • Material Quality2%
  • Size-Overall2%
  • Maintenance And Repair1%
  • Functionality-Overall1%

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