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0w20 engine oil
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Avg price
Great£22.63avg listing price — sweet spot $15–$100
Review moat
Great265.14avg incumbent reviews — the moat a new listing must climb
Price range
Great£8.15–£43.30cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good5.6%search→purchase rate — share of searches ending in a sale
Growth
Good+23.4%90-day search growth — must beat 0% to launch
Market size
Okay£139K£139K/yr · 109K searches
Competition
Okay69%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Brand share
Bad100%top-5 brand share — brand-locked demand