--- title: "amsoil pi — Niche Verdict: Worth a look (56/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/amsoil-pi" last_updated: "2026-07-10T00:51:35.822Z" locale: en meta: description: "amsoil pi shows low returns (0.4%), but strong incumbent ratings (4.7★) keeps it on the watch list." "og:description": "amsoil pi shows low returns (0.4%), but strong incumbent ratings (4.7★) keeps it on the watch list." "og:title": "amsoil pi — Niche Verdict: Worth a look (56/100) | Amazon United States - Flapen" --- Back to Flapen home # **amsoil pi** **Worth a look****56/100 ** amsoil pi shows low returns (0.4%), but strong incumbent ratings (4.7★) keeps it on the watch list. **Market/yr** **$1.0M** **Growth (1y)** **+354.8%** **Products** **14** **Brands** **4** was 6 a year ago **Sellers** **232** **Price range** **$6.59–$108.01** **Returns** **0.4%** **Rating** **4.7★** **Worth a look** Scored 56/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **34** ×0.30 Growth **89** ×0.30 Competition **36** ×0.20 Quality gap **20** ×0.10 Returns **97** ×0.10 ## **Demand** Weekly Amazon search volume, last 49 weeks — +354.8% year over year. 36K18KSpike '25Black Friday '25Holiday '25Spike '26Aug '25Sep '25Nov '25Jan '26Mar '26May '26 ## **Competition** - Royal Purple60% - Amsoil22% - Red Line10% - KOZZI7% The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them. 4 brands and 232 sellers compete here. **Brands** **4 **▼falling was 6 a year ago **Sellers** **232** **Top 5 brand share** **100%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce](https://m.media-amazon.com/images/I/31asof-XeyL.jpg) [**Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce**](https://www.amazon.com/dp/B00B1VBQRS) Royal Purple$12.014.7★3,19135%▼falling 2 ![Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz.](https://m.media-amazon.com/images/I/31KHoX-vajL.jpg) [**Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz.**](https://www.amazon.com/dp/B00XF03K54) Royal Purple$6.594.6★3,4408%▼falling 3 ![Amsoil 20/50wt Full Synthetic V-Twin Motorcycle Oil](https://m.media-amazon.com/images/I/41JLvKfeesL.jpg) [**Amsoil 20/50wt Full Synthetic V-Twin Motorcycle Oil**](https://www.amazon.com/dp/B01L6ZWV9U) Amsoil$104.004.8★1738%▲rising 4 ![Royal Purple 18001 Max-Restore High Mileage Fuel System Treatment - 6 Ounce](https://m.media-amazon.com/images/I/31z-tjKTx8L.jpg) [**Royal Purple 18001 Max-Restore High Mileage Fuel System Treatment - 6 Ounce**](https://www.amazon.com/dp/B0D67F93X7) Royal Purple$8.974.8★1148%▲rising 5 ![KOZZI Mens Boxer Briefs Premium Soft Breathable Nylon for Everyday Royal Purple](https://m.media-amazon.com/images/I/41a8S+Svx5L.jpg) [**KOZZI Mens Boxer Briefs Premium Soft Breathable Nylon for Everyday Royal Purple**](https://www.amazon.com/dp/B091RM5HRZ) KOZZI$12.224.3★1287%▲rising 6 ![Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce- Fuel Injector Cleaner and Carburetor Cleaner for Corrosion Prevention and Injector Valve and Combustion Chamber Deposit Removal](https://m.media-amazon.com/images/I/413HnZCp0nL.jpg) [**Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce- Fuel Injector Cleaner and Carburetor Cleaner for Corrosion Prevention and Injector Valve and Combustion Chamber Deposit Removal**](https://www.amazon.com/dp/B000CPI5Z0) Red Line$16.174.8★9,6456%▲rising 7 ![Amsoil SVGPK 100% Synthetic Extreme Pressure (EP) SEVERE GEAR Lube Quart Easy-Pack (75W-90)](https://m.media-amazon.com/images/I/41qgiPHY5pL.jpg) [**Amsoil SVGPK 100% Synthetic Extreme Pressure (EP) SEVERE GEAR Lube Quart Easy-Pack (75W-90)**](https://www.amazon.com/dp/B0914H3KN2) Amsoil$36.354.8★1955%▲rising 8 ![Royal Purple 51530 API-Licensed SAE 5W-30 High Performance Synthetic Motor Oil - 5 qt. Model:ROY51530](https://m.media-amazon.com/images/I/417dBvJxLpL.jpg) [**Royal Purple 51530 API-Licensed SAE 5W-30 High Performance Synthetic Motor Oil - 5 qt. Model:ROY51530**](https://www.amazon.com/dp/B005SEJTUA) Royal Purple$34.994.8★4,6465%▼falling 9 ![Red Line 60103 SI-1 Complete Fuel System Cleaner Cleans and Prevents Corrosion in Fuel Systems Cleans Injectors Carburetors Valve and Combustion Chamber Deposits - 15 Ounce (2 Pack)](https://m.media-amazon.com/images/I/417acyUuS6L.jpg) [**Red Line 60103 SI-1 Complete Fuel System Cleaner Cleans and Prevents Corrosion in Fuel Systems Cleans Injectors Carburetors Valve and Combustion Chamber Deposits - 15 Ounce (2 Pack)**](https://www.amazon.com/dp/B00NQB7OM2) Red Line$30.764.8★9,6454%▲rising 10 ![Amsoil ASL1G-EA Signature Series 5W-30 Synthetic Motor Oil](https://m.media-amazon.com/images/I/41+YFKC155L.jpg) [**Amsoil ASL1G-EA Signature Series 5W-30 Synthetic Motor Oil**](https://www.amazon.com/dp/B00EXBSLBC) Amsoil$108.014.4★4074%▲rising 11 ![AMSOIL FULL SYNTHETIC Dominator 2-Cycle Oil 1 Quart](https://m.media-amazon.com/images/I/11xonftvxtL.jpg) [**AMSOIL FULL SYNTHETIC Dominator 2-Cycle Oil 1 Quart**](https://www.amazon.com/dp/B008SBHMKY) Amsoil$29.234.8★5153%▼falling 12 ![AMSOIL Full Synthetic Motorcycle Oil 20W-50 - ONE U.S. QUART 946 ml](https://m.media-amazon.com/images/I/31E2jCZgVmL.jpg) [**AMSOIL Full Synthetic Motorcycle Oil 20W-50 - ONE U.S. QUART 946 ml**](https://www.amazon.com/dp/B008SBHB3W) Amsoil$29.404.8★4583%▲rising 13 ![Royal Purple 18000 Max Atomizer Fuel Injector Cleaner - 6 oz. (10 Pack)](https://m.media-amazon.com/images/I/31VlySxlgQL.jpg) [**Royal Purple 18000 Max Atomizer Fuel Injector Cleaner - 6 oz. (10 Pack)**](https://www.amazon.com/dp/B0892M582X) Royal Purple$52.324.8★1442%—flat 14 ![Royal Purple ROY51020 API-Licensed SAE 0W-20 High Performance Synthetic Motor Oil - 5 qt.](https://m.media-amazon.com/images/I/41Aw0kxyVCL.jpg) [**Royal Purple ROY51020 API-Licensed SAE 0W-20 High Performance Synthetic Motor Oil - 5 qt.**](https://www.amazon.com/dp/B005SEK9IQ) Royal Purple$35.374.9★2,7462%—flat ## **Product shelf** All 14 tracked products in this niche. Top sellersNewestTrending [![Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce](https://m.media-amazon.com/images/I/31asof-XeyL.jpg)**Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce** Royal Purple**$12.01**4.7★3,191 reviews](https://www.amazon.com/dp/B00B1VBQRS) [![Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz.](https://m.media-amazon.com/images/I/31KHoX-vajL.jpg)**Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz.** Royal Purple**$6.59**4.6★3,440 reviews](https://www.amazon.com/dp/B00XF03K54) [![Amsoil 20/50wt Full Synthetic V-Twin Motorcycle Oil](https://m.media-amazon.com/images/I/41JLvKfeesL.jpg)**Amsoil 20/50wt Full Synthetic V-Twin Motorcycle Oil** Amsoil**$104.00**4.8★173 reviews](https://www.amazon.com/dp/B01L6ZWV9U) [![Royal Purple 18001 Max-Restore High Mileage Fuel System Treatment - 6 Ounce](https://m.media-amazon.com/images/I/31z-tjKTx8L.jpg)**Royal Purple 18001 Max-Restore High Mileage Fuel System Treatment - 6 Ounce** Royal Purple**$8.97**4.8★114 reviews](https://www.amazon.com/dp/B0D67F93X7) [![KOZZI Mens Boxer Briefs Premium Soft Breathable Nylon for Everyday Royal Purple](https://m.media-amazon.com/images/I/41a8S+Svx5L.jpg)**KOZZI Mens Boxer Briefs Premium Soft Breathable Nylon for Everyday Royal Purple** KOZZI**$12.22**4.3★128 reviews](https://www.amazon.com/dp/B091RM5HRZ) [![Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce- Fuel Injector Cleaner and Carburetor Cleaner for Corrosion Prevention and Injector Valve and Combustion Chamber Deposit Removal](https://m.media-amazon.com/images/I/413HnZCp0nL.jpg)**Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce- Fuel Injector Cleaner and Carburetor Cleaner for Corrosion Prevention and Injector Valve and Combustion Chamber Deposit Removal** Red Line**$16.17**4.8★9,645 reviews](https://www.amazon.com/dp/B000CPI5Z0) [![Amsoil SVGPK 100% Synthetic Extreme Pressure (EP) SEVERE GEAR Lube Quart Easy-Pack (75W-90)](https://m.media-amazon.com/images/I/41qgiPHY5pL.jpg)**Amsoil SVGPK 100% Synthetic Extreme Pressure (EP) SEVERE GEAR Lube Quart Easy-Pack (75W-90)** Amsoil**$36.35**4.8★195 reviews](https://www.amazon.com/dp/B0914H3KN2) [![Royal Purple 51530 API-Licensed SAE 5W-30 High Performance Synthetic Motor Oil - 5 qt. Model:ROY51530](https://m.media-amazon.com/images/I/417dBvJxLpL.jpg)**Royal Purple 51530 API-Licensed SAE 5W-30 High Performance Synthetic Motor Oil - 5 qt. Model:ROY51530** Royal Purple**$34.99**4.8★4,646 reviews](https://www.amazon.com/dp/B005SEJTUA) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Quality-Overall**26% *“Excellent quality oil”* **Efficiency**13% *“Works perfectly”* **Fuel Efficiency**12% *“Improved gas mileage”* **Ease Of Cleaning**11% *“Best cleaner available”* **Value For Money**10% *“Cant beat the price”* **Advertised Vs Actual Product**8% *“As advertised”* **Lubrication**4% *“Awesome Oil for my ride”* **Ease Of Use**3% *“Easy to use”* **Color**2% *“I liked the color of the container”* **Maintenance And Repair**1% *“Great maintenance product”* ### **What buyers complain about ** **Value For Money**20% *“A little mor expensive”* **Functionality-Overall**13% *“Works great until it doesn't”* **Leak-Proof**12% *“My items was leaking”* **Fuel Efficiency**8% *“no better gas mileage”* **Noise Level**7% *“the engine noise stayed the same”* **Quality-Overall**5% *“I noticed no improvement at all”* **Advertised Vs Actual Product**4% *“advertising even though it is a complete LIE thanks to the 1997 ruling in favor of big oil profits”* **Hard Feel**2% *“was feeling a bit rough”* **Accuracy-Overall**2% *“Not Sure”* **Durability**2% *“after driving 50mi it was gone”* #### **Top return reasons**- Leak-Proof53% - Value For Money11% - Compatibility-Overall8% - Functionality-Overall6% - Advertised Vs Actual Product5% - Lubrication4% - Defective Material/Parts3% - Product Condition2% - Fuel Efficiency1% - Smell1%