Redline 75w90
FailThe top 5 brands take 100% of clicks, so Redline 75w90 is a Fail.
- Flapen Score
- 44 / 100Ranks 5,081 of 7,287 Automotive niches · −5 vs the category median of 4944
- Market size
- $113K/yr26K searches / yr
- 90-day growth
- +12.1%search demand this quarter
- Competition
- 72%top-5 click share · 4 brands · 84 sellers
Flapen Score
Redline 75w90 against its category
The dotted line is the Automotive average. Past it, Redline 75w90 is stronger. Inside it, weaker.
Market
The Redline 75w90 market on Amazon at a glance
Shoppers on Amazon United States searched for Redline 75w90 26K times last year and spent an estimated $113K. All 4 brands take every click. Flapen scores it 44 out of 100, a Fail.
01 · Demand
An estimated 10.9% of those searches ended in a purchase.
Shoppers searched for this 26K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 10.9% of those searches ended in a purchase. Searches in the last 90 days moved +12.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $113K a year.
- Searches, last 12 months
- 26K
- Growth, 90 days vs prior 90
- +12.1%
- Conversion, latest week
- 10.9%
- Market size, estimated
- $113Ka year
- Top search term
- redline 75w9020K searches a year
02 · Price
A sale here is worth $39.35.
Listings sell for $39.35 on average, from $22.38 to $77.03. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 250 to 500 of them. At $39.35 that is $10K to $20K a year per listing.
- Average price
- $39.35inside the $15 to $100 sweet spot
- Price range
- $22.38–$77.03
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $10K–$20K
- Returns
- 1.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
93% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #41 within Oils & Fluids. It carries 1,550 reviews at 4.84 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 93%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #41in Oils & Fluids
- Average rating
- 4.84 starsAmazon United States average 4.42 stars
- Average reviews
- 1,550per listing
- Listings tracked
- 14
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 129 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 129 months
Products
Top Redline 75w90 products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 9, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Red Line 57904 75W90 GL-5 Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Quart
- Price
- $22.64
- Rating
- 4.9/5
- Reviews
- 1,693
- Age
- 21y ago

Red Line 57904 75W90 GL-5 Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Quart (2 Pack)
- Price
- $39.90
- Rating
- 4.9/5
- Reviews
- 1,693
- Age
- 3y ago

Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack)
- Price
- $72.98
- Rating
- 4.8/5
- Reviews
- 432
- Age
- 16y ago

Red Line 57905 75W90 GL-5 Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Gallon
- Price
- $77.03
- Rating
- 4.8/5
- Reviews
- 636
- Age
- 14y ago

Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (2 Pack)
- Price
- $42.15
- Rating
- 4.9/5
- Reviews
- 5,032
- Age
- 11y ago
Trending
estimated 90-day click momentum
Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack)
- Price
- $72.98
- Rating
- 4.8/5
- Reviews
- 432
- Age
- 16y ago

Red Line 50604 MT-LV 70W/75W GL-4 High-Performance Full Synthetic Gear Oil Lubricant for Manual Transmissions & Transaxles - 1 Quart
- Price
- $22.97
- Rating
- 4.7/5
- Reviews
- 485
- Age
- 5y ago

Red Line 42804 Full Synthetic Gear Oil V-Twin Transmission Oil with Shockproof - 1 Quart
- Price
- $23.08
- Rating
- 4.9/5
- Reviews
- 1,903
- Age
- 16y ago

Red Line 57904 75W90 GL-5 Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Quart (2 Pack)
- Price
- $39.90
- Rating
- 4.9/5
- Reviews
- 1,693
- Age
- 3y ago

Red Line 58204 Heavy Shockproof Gear Oil - 1 Quart
- Price
- $23.41
- Rating
- 4.8/5
- Reviews
- 1,004
- Age
- 20y ago
Newest
by launch date
Red Line 57904 75W90 GL-5 Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Quart (2 Pack)
- Price
- $39.90
- Rating
- 4.9/5
- Reviews
- 1,693
- Age
- 3y ago

Red Line 50604 MT-LV 70W/75W GL-4 High-Performance Full Synthetic Gear Oil Lubricant for Manual Transmissions & Transaxles - 1 Quart
- Price
- $22.97
- Rating
- 4.7/5
- Reviews
- 485
- Age
- 5y ago

Red Line 50104 75W85 GL-5 Full Synthetic Gear Oil for Hypoid Limited Slip Differentials - 2 Quarts
- Price
- $39.31
- Rating
- 4.9/5
- Reviews
- 1,276
- Age
- 6y ago

Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (2 Pack)
- Price
- $42.15
- Rating
- 4.9/5
- Reviews
- 5,032
- Age
- 11y ago

Red Line 58304 75W90 Non-Slip Synthetic Gear Oil - 1 Quart (2 Pack)
- Price
- $45.29
- Rating
- 4.8/5
- Reviews
- 545
- Age
- 11y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 72% of clicks. A locked shelf that new listings rarely crack.
Brands
4 falling
Sellers
84
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
72%
Top 20: 100%
Open market
0%
- Red Line59%
- RED LINE29%
- Red Line Oil8%
- Redline Oil5%
Demand
Redline 75w90 search demand
Weekly searches over the year. Pick a range.
Search terms
Top Redline 75w90 search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- redline 75w9020K/yr
- redline gear oil4K/yr
- red line 75w902K/yr
Reviews and returns
What reviews say buyers love and hate about Redline 75w90
We read the reviews and the return reasons for every product selling here.
“It's not cheap”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Redline 75w90 questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









