--- title: "manual transmission fluid — Niche Verdict: Skip it (37/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/manual-transmission-fluid" last_updated: "2026-07-10T19:12:19.084Z" locale: en meta: description: "a small market ($178K/yr) — manual transmission fluid doesn't clear our bar today." "og:description": "a small market ($178K/yr) — manual transmission fluid doesn't clear our bar today." "og:title": "manual transmission fluid — Niche Verdict: Skip it (37/100) | Amazon United States - Flapen" --- Back to Flapen home # **manual transmission fluid** **Skip it****37/100 ** a small market ($178K/yr) — manual transmission fluid doesn't clear our bar today. **Market/yr** **$178K** **Growth (1y)** **+128.5%** **Products** **14** **Brands** **8** was 8 a year ago **Sellers** **95** **Price range** **$9.51–$100.84** **Returns** **1.3%** **Rating** **4.8★** **Skip it** Scored 37/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **9** ×0.30 Growth **68** ×0.30 Competition **15** ×0.20 Quality gap **20** ×0.10 Returns **89** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +128.5% year over year. 2K1KSpike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND No pronounced peak months · busiest ÷ quietest = 1.5× ## **Competition** - Royal Purple54% - Valvoline29% - ACDelco5% - Honda4% - Pennzoil4% - Red Line2% - Other (2 brands)3% The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack. 8 brands and 95 sellers compete here. **Brands** **8 **—flat was 8 a year ago **Sellers** **95** **Top 5 brand share** **95%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![Royal Purple-ROY01512 ROYAL PURPLE SYNCHROMAX QT. TRANSFLUID 1 Quart (32 Ounces)](https://m.media-amazon.com/images/I/311ztgz-BjL.jpg) [**Royal Purple-ROY01512 ROYAL PURPLE SYNCHROMAX QT. TRANSFLUID 1 Quart (32 Ounces)**](https://www.amazon.com/dp/B001DKTG0G) Royal Purple$19.814.8★1,89030%▲rising 2 ![Valvoline Synchromesh Manual Transmission Fluid 1 Quart](https://m.media-amazon.com/images/I/31d8y-8F4vL.jpg) [**Valvoline Synchromesh Manual Transmission Fluid 1 Quart**](https://www.amazon.com/dp/B071YBH8P1) Valvoline$9.514.8★81529%▲rising 3 ![Royal Purple 01512 Set of 4 Synchromax Manual Transmission Fluid 1-Quart Bottles](https://m.media-amazon.com/images/I/517T0zcFPeL.jpg) [**Royal Purple 01512 Set of 4 Synchromax Manual Transmission Fluid 1-Quart Bottles**](https://www.amazon.com/dp/B074W8FSVG) Royal Purple$69.764.8★24815%▼falling 4 ![Honda Fluid 08798-9031 Manual Transmission Fluid - 1 Quart](https://m.media-amazon.com/images/I/31QtPkQ6OPL.jpg) [**Honda Fluid 08798-9031 Manual Transmission Fluid - 1 Quart**](https://www.amazon.com/dp/B001IWL1O8) Honda$15.554.8★2,0244%▼falling 5 ![Transmission Fluid 32oz 350 deg. FP](https://m.media-amazon.com/images/I/311Qc+jKScL.jpg) [**Transmission Fluid 32oz 350 deg. FP**](https://www.amazon.com/dp/B0002KL098) Pennzoil$17.094.8★1394%—flat 6 ![Royal Purple 01512 Synchromax Manual Transmission Fluid Pack of 2 Quarts](https://m.media-amazon.com/images/I/31QBtykXAuL.jpg) [**Royal Purple 01512 Synchromax Manual Transmission Fluid Pack of 2 Quarts**](https://www.amazon.com/dp/B087H7YLZ6) Royal Purple$39.244.9★813%▼falling 7 ![ACDelco GM Original Equipment 10-4014 Friction Modified Synchromesh Transmission Fluid 32 Ounce White 1 qt](https://m.media-amazon.com/images/I/31imaVEAnQL.jpg) [**ACDelco GM Original Equipment 10-4014 Friction Modified Synchromesh Transmission Fluid 32 Ounce White 1 qt**](https://www.amazon.com/dp/B0026JK8FK) ACDelco$22.824.8★5503%▼falling 8 ![Royal Purple 01512 Set of 3 Synchromax Manual Transmission Fluid 1-Quart Bottles](https://m.media-amazon.com/images/I/4190Oqa522L.jpg) [**Royal Purple 01512 Set of 3 Synchromax Manual Transmission Fluid 1-Quart Bottles**](https://www.amazon.com/dp/B074WCLCG7) Royal Purple$51.994.8★1072%▼falling 9 ![Royal Purple 01512 Synchromax Manual Transmission Fluid - 1 Quart (Pack of 6)](https://m.media-amazon.com/images/I/31QBtykXAuL.jpg) [**Royal Purple 01512 Synchromax Manual Transmission Fluid - 1 Quart (Pack of 6)**](https://www.amazon.com/dp/B007SPM0RG) Royal Purple$98.584.8★1,8902%▲rising 10 ![Royal Purple 06512 Synchromax Manual Trans Fluid Case 6 Quart 1 Pack](https://m.media-amazon.com/images/I/41Gx5r9qW8L.jpg) [**Royal Purple 06512 Synchromax Manual Trans Fluid Case 6 Quart 1 Pack**](https://www.amazon.com/dp/B00TO64JU8) Royal Purple$100.844.8★1192%—flat 11 ![Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (2 Pack)](https://m.media-amazon.com/images/I/51ECsmqdd6L.jpg) [**Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (2 Pack)**](https://www.amazon.com/dp/B00NT5V8RW) Red Line$42.154.9★5,0322%▲rising 12 ![Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL)- 1 Quart](https://m.media-amazon.com/images/I/51ECsmqdd6L.jpg) [**Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL)- 1 Quart**](https://www.amazon.com/dp/B000CPCBEQ) Redline Oil$22.384.9★5,0322%—flat 13 ![ACDelco 769476 GM Original Equipment 10-4006 Synchromesh Transmission Fluid - 1 qt 32 Ounce](https://m.media-amazon.com/images/I/41iDz8EQoOL.jpg) [**ACDelco 769476 GM Original Equipment 10-4006 Synchromesh Transmission Fluid - 1 qt 32 Ounce**](https://www.amazon.com/dp/B0026JK8FA) ACDelco$22.084.7★1822%▼falling 14 ![Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack)](https://m.media-amazon.com/images/I/31Kof3ea3+L.jpg) [**Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack)**](https://www.amazon.com/dp/B003P550IE) Red Line Oil$72.984.8★4322%▲rising ## **Product shelf** All 14 tracked products in this niche. Top sellersNewestTrending [![Royal Purple-ROY01512 ROYAL PURPLE SYNCHROMAX QT. TRANSFLUID 1 Quart (32 Ounces)](https://m.media-amazon.com/images/I/311ztgz-BjL.jpg)**Royal Purple-ROY01512 ROYAL PURPLE SYNCHROMAX QT. TRANSFLUID 1 Quart (32 Ounces)** Royal Purple**$19.81**4.8★1,890 reviews](https://www.amazon.com/dp/B001DKTG0G) [![Valvoline Synchromesh Manual Transmission Fluid 1 Quart](https://m.media-amazon.com/images/I/31d8y-8F4vL.jpg)**Valvoline Synchromesh Manual Transmission Fluid 1 Quart** Valvoline**$9.51**4.8★815 reviews](https://www.amazon.com/dp/B071YBH8P1) [![Royal Purple 01512 Set of 4 Synchromax Manual Transmission Fluid 1-Quart Bottles](https://m.media-amazon.com/images/I/517T0zcFPeL.jpg)**Royal Purple 01512 Set of 4 Synchromax Manual Transmission Fluid 1-Quart Bottles** Royal Purple**$69.76**4.8★248 reviews](https://www.amazon.com/dp/B074W8FSVG) [![Honda Fluid 08798-9031 Manual Transmission Fluid - 1 Quart](https://m.media-amazon.com/images/I/31QtPkQ6OPL.jpg)**Honda Fluid 08798-9031 Manual Transmission Fluid - 1 Quart** Honda**$15.55**4.8★2,024 reviews](https://www.amazon.com/dp/B001IWL1O8) [![Transmission Fluid 32oz 350 deg. FP](https://m.media-amazon.com/images/I/311Qc+jKScL.jpg)**Transmission Fluid 32oz 350 deg. FP** Pennzoil**$17.09**4.8★139 reviews](https://www.amazon.com/dp/B0002KL098) [![Royal Purple 01512 Synchromax Manual Transmission Fluid Pack of 2 Quarts](https://m.media-amazon.com/images/I/31QBtykXAuL.jpg)**Royal Purple 01512 Synchromax Manual Transmission Fluid Pack of 2 Quarts** Royal Purple**$39.24**4.9★81 reviews](https://www.amazon.com/dp/B087H7YLZ6) [![ACDelco GM Original Equipment 10-4014 Friction Modified Synchromesh Transmission Fluid 32 Ounce White 1 qt](https://m.media-amazon.com/images/I/31imaVEAnQL.jpg)**ACDelco GM Original Equipment 10-4014 Friction Modified Synchromesh Transmission Fluid 32 Ounce White 1 qt** ACDelco**$22.82**4.8★550 reviews](https://www.amazon.com/dp/B0026JK8FK) [![Royal Purple 01512 Set of 3 Synchromax Manual Transmission Fluid 1-Quart Bottles](https://m.media-amazon.com/images/I/4190Oqa522L.jpg)**Royal Purple 01512 Set of 3 Synchromax Manual Transmission Fluid 1-Quart Bottles** Royal Purple**$51.99**4.8★107 reviews](https://www.amazon.com/dp/B074WCLCG7) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Value For Money**21% *“Good $ Great MTF”* **Lubrication**17% *“super slippery lubricant”* **Quality-Overall**13% *“this is honestly better than OEM”* **Advertised Vs Actual Product**11% *“As advertised”* **Functionality-Overall**10% *“Shifts pretty good”* **Durability**7% *“I have used this valvoline for years”* **Soft Feel**6% *“overall more smooth”* **Efficiency**3% *“MT90 is my secret sauce for manual transmission lubricant”* **Ease Of Use**3% *“and easy to use”* **Heating**2% *“It works well when the temperature is high. e. g. 20 degree C.”* ### **What buyers complain about ** **Lubrication**29% *“And I'm assuming that someone had added extra gear oil”* **Value For Money**21% *“It's not cheap”* **Size-Overall**14% *“small opening”* **Leak-Proof**7% *“Because it spilled out when i took off the fill cap on ramps”* **Audio Quality**4% *“now the sound is nearly non existent”* #### **Top return reasons**- Compatibility-Overall36% - Advertised Vs Actual Product15% - Value For Money15% - Leak-Proof10% - Lubrication8% - Functionality-Overall3% - Weight Heavy2% - Defective Material/Parts2% - Color1% - Thin1%