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10w40

10w40 shows low returns (0.4%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Flapen Score

50
Worth a look

Ranks 756 of 1,428 Auto & Motorrad niches · −1 vs the category median of 51

Market size 57Growth 44Conversion 71Competition 43Returns 98Price range 77Avg price 83Brand share 0Review moat 39Quality gap 17
This niche Category average · 1,428 niches

Is 10w40 profitable on Amazon?

According to Flapen's Amazon Germany niche tracking, 10w40 is a €437K/yr Amazon Germany market (365K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 50/100.

10w40: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved +15.6% over the last 90 days and 6.5% of searches end in a purchase.

€437K

revenue / yr

Units sold / yr30K
Search volume / yr+15.6%365K
Conversion rate6.5%
Avg price€18.32

Who owns the niche?

The top 5 brands hold 100% of demand, so 0% of the market is open.

0%

open market share

Brands · sellers5 · 85
Top-5 product click share59%
Open market0%
Avg brand age99 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.7★ — the gap to enter on.

0/100

page quality · 20 products

Sponsored placement75%
New entrants (1y)1· 1 succeeded
Avg rating4.7★
Avg reviews2,608

Top 10w40 products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

€0€44K€87K€131K€175K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

5 falling

Sellers

85

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

59%

Top 20: 100%

Open market

0%

  • MANNOL50%
  • Liqui Moly36%
  • Castrol8%
  • Mobil Super4%
  • Mobil2%

10w40 demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume365KCVR6.5%Products20Brands5Top 5 Brands100%OOS Rate0.0%Rating4.7★Reviews2,608Avg BSR#63
10K6KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

Top 10w40 search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • 10w40 motoröl108K/yr
  • motoröl 10w4074K/yr
  • 10w4053K/yr
  • liqui moly 10w4019K/yr
  • mannol 10w4019K/yr
  • öl 10w4015K/yr
  • 10w40 motoröl 5l17K/yr
  • 10 w 40 motoröl14K/yr
  • motorenöl 10w-407K/yr
  • motoröl 10w40 5 liter6K/yr

What reviews say buyers love and hate about 10w40

What buyers mention most, as a share of all reviews.

What buyers love

96% of reviews
Qualität insgesamt27%

Super Qualität

Schmierung26%

Tolles Öl auch für ältere Motoren

Preis-Leistungs-Verhältnis24%

Super günstig ok

beworben Vs Tatsächliches Produkt7%

Alles so wie es sein soll

Motorleistung4%

Super, Motoröl

What buyers complain about

85% of reviews
Preis-Leistungs-Verhältnis16%

Für 5.30€ Top Preis Leistung

Dicke15%

Zu dünn

Auslaufsicher13%

Flasche undicht

Schmierung9%

Öl schmiert, Motor läuft

Kompatibilität – insgesamt9%

Nicht geeignet für honda st 1100 bj 91

10w40 return rate & reasons

Why buyers send it back, as a share of all return requests.

0.4%

Return rate

0%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Gesamtgröße
28%
2Kompatibilität – insgesamt
26%
3Zertifizierungen
7%
4beworben Vs Tatsächliches Produkt
6%
5Auslaufsicher
6%

Common 10w40 questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores 10w40 50/100 on Amazon Germany — Worth a look. The niche generates €437K/yr across 20 tracked products. 1 of 1 products launched in the last 360 days are still selling. Search demand moved +15.6% over the last 90 days.
Search demand for 10w40 on Amazon Germany is steady year-round — the busiest month runs 1.6× the quietest.