---
title: "Trend — royal purple oil filter - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/royal-purple-oil-filter/trend"
last_updated: "2026-08-10T17:07:20.337Z"
locale: en
meta:
  description: "Niche score 50/100 · $318K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 50/100 · $318K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — royal purple oil filter - Flapen"
---

# **royal purple oil filter**

**Worth a look**

Shows low returns (0.8%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size 52Growth 37Conversion 79Competition 46Returns 96Price range 88Avg price 81Brand share 0Review moat 40Quality gap 14

**Returns**

**Incredible****0.8%**

return rate — above 5% kills the launch gate

**Price range**

**Great****$10.55–$65.28**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Avg price**

**Great****$17.21**

avg listing price — sweet spot $15–$100

**Conversion**

**Great****8.0%**

search→purchase rate — share of searches ending in a sale

**Market size**

**Good****$318K**

$318K/yr · 231K searches

**Competition**

**Okay****57%**

top-5 click share — leaders hold, buyers still browse

**Review moat**

**Okay****2,492.11**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Okay****+10.0%**

90-day search growth — must beat 0% to launch

**Quality gap**

**Bad****4.8★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

## Trend