engine carbon cleaner
Skip it42/100a small market ($142K/yr) — engine carbon cleaner doesn't clear our bar today.
Market/yr
$142K
Growth (1y)
+146.7%
Products
16
Brands
6
was 10 a year ago
Sellers
93
Price range
$9.87–$93.58
Returns
0.6%
Rating
4.6★
Skip it
Scored 42/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 101 weeks — +146.7% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.Peak months: Oct, Nov · busiest ÷ quietest = 1.8×
Competition
- Bore Tech44%
- Liqui Moly30%
- Slip200017%
- MotorPower Care5%
- CRC2%
- Triax2%
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack. 6 brands and 93 sellers compete here.
Brands
6 falling
was 10 a year ago
Sellers
93
Top 5 brand share
98%
Product shelf
All 16 tracked products in this niche.

Bore Tech C4 Carbon Remover 4 oz
Bore Tech
$24.064.8★345 reviews

Liqui Moly Valve Clean | 150 ml | Petroladititive | SKU: 2001
Liqui Moly
$9.874.7★4,282 reviews

Bore Tech BTCC-35016 C4 Carbon Remover 16 oz
Bore Tech
$42.164.9★427 reviews

SLIP 2000 Carbon Killer - 15 oz.
Slip2000
$21.424.4★746 reviews

SLIP 2000 Carbon Killer Bore Cleaner Removes Carbon Grease and Lead on Contact 4-Ounce
Slip2000
$13.794.4★746 reviews

Liqui Moly (2001-12PK) Valve Clean - 150 ml (Pack of 12)
Liqui Moly
$93.584.7★4,282 reviews

MotorPower Care Advanced Carbon Cleaner for Gasoline & Diesel Engines - Removes Carbon Deposits Improves Performance & Efficiency - Safe for Use on Engine Components
MotorPower Care
$25.054.3★47 reviews

LIQUI MOLY - 150mL Valve Clean (2001)
Liqui Moly
$15.750.0★0 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“It works great”
“Excellent Product”
“Best cleaner”
“Good price”
“As advertised”
“gets great gas mileage”
“Easy to use”
“smells great”
“Filled with Fresh oil and filter, and I also used some ProLube oil treatment, and have amazing oil pressure and have no issues anymore”
“Excellent bore safe carbon removed”
What buyers complain about
“Did not work”
“it is expensive”
“Did not work for a 2002 Toyota sienna”
“Tough to open”
“The liquid got everywhere”
“still needs maintenance”
“Is also very stinky”
“still not clean”
“I mistakenly used an oil addative to my engine”
“Their product is no good”
Top return reasons
- Leak-Proof26%
- Functionality-Overall15%
- Advertised Vs Actual Product9%
- Compatibility-Overall9%
- Value For Money9%
- Carbon Footprint6%
- Defective Material/Parts5%
- Size-Overall4%
- Ease Of Cleaning2%
- Instructions/User Manual/Troubleshooting2%






