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5w-30 full synthetic 1 quart

Skip it49/100

a small market ($122K/yr) — 5w-30 full synthetic 1 quart doesn't clear our bar today.

Market/yr

$122K

Growth (1y)

+236.2%

Products

28

Brands

6

was 8 a year ago

Sellers

131

Price range

$5.50–$48.76

Returns

0.6%

Rating

4.8★

49/100

Skip it

Scored 49/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
6
×0.30
Growth
81
×0.30
Competition
60
×0.20
Quality gap
20
×0.10
Returns
95
×0.10

Demand

Weekly Amazon search volume, last 62 weeks — +236.2% year over year.
2K960.5Spike '26May '25Jul '25Sep '25Nov '25Feb '26Apr '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: Mar, Apr, May · busiest ÷ quietest = 2.8×

Competition

44%Valvoline
  • Valvoline44%
  • Pennzoil24%
  • Mobil16%
  • Castrol11%
  • Royal Purple2%
  • Chevron2%
  • Other0%

The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them. 6 brands and 131 sellers compete here.

Brands

6 falling

was 8 a year ago

Sellers

131

Top 5 brand share

98%

#ProductBrandPriceRatingReviewsClick shareTrend
3Pennzoil$6.594.8★5769%rising
4Valvoline$7.964.8★13,4369%falling
8Pennzoil$6.374.8★2,6074%rising

Product shelf

All 28 tracked products in this niche.

Reviews

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

What buyers love

Value For Money32%

“AWESOME price”

Quality-Overall23%

“Excellent product”

Lubrication17%

“The oil itself was great”

Advertised Vs Actual Product9%

“As advertised”

Motor Power3%

“Keeping the GM motor running strong”

Fuel Efficiency3%

“Solid Oil for High-Mileage Engines”

Leak-Proof2%

“Jug was delivered no leaks”

Efficiency2%

“Car still runs great”

Size-Overall1%

“Perfect fit for OEM”

Noise Level1%

“Runs smooth, no issues, and seems to help keep everything quiet and running like it should”

What buyers complain about

Leak-Proof21%

“arrived leaking”

Value For Money11%

“better price”

Lubrication10%

“Its slippy oil”

Ease Of Use8%

“Container difficult to use”

Quality-Overall6%

“Junk”

Advertised Vs Actual Product5%

“False description”

Motor Issues5%

“It would of blown up my engine”

Weight Heavy2%

“Oil weight”

Pressure2%

“Ironically it made my oil pressure slightly higher then before”

Fuel Efficiency2%

“not grade 3 oil”

Top return reasons

  • Leak-Proof20%
  • Compatibility-Overall20%
  • Lubrication14%
  • Value For Money13%
  • Advertised Vs Actual Product10%
  • Size-Overall3%
  • Certifications3%
  • Defective Material/Parts3%
  • Material Quality2%
  • Motor Issues2%

Data scraped July 9, 2026 · Marketplace baseline: 4.4★ avg rating · $22.65 median price · 2.2% median returns across 14,117 tracked niches.