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⚓ Keep your engine sailing smooth — no carbon left behind!
Mercury Quickleen Engine & Fuel System Cleaner is a professional-grade additive designed to treat up to 60 gallons of fuel per 12 fl oz bottle. It aggressively removes carbon deposits from critical engine components like carburetors, injectors, intake valves, spark plugs, piston crowns, and cylinder heads. This cleaner prevents engine knocking and piston seize-up, extending spark plug life and ensuring reliable marine engine performance throughout the boating season.
| ASIN | B003ZF1GJQ |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #57,494 in Automotive ( See Top 100 in Automotive ) #83 in Fuel System Cleaners |
| Brand | MERCURY |
| Customer Reviews | 4.8 4.8 out of 5 stars (823) |
| Date First Available | August 12, 2010 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 11.3 ounces |
| Item model number | 8M0047931 |
| Manufacturer | Mercury Marine Mercruiser |
| Manufacturer Part Number | 92-8M0047931 |
| Model | Mercury |
| OEM Part Number | 8M0047931 |
| Product Dimensions | 8 x 7 x 8 inches |
| Thread Size | RM |
| UPC | 745061870192 |
| Vehicle Service Type | Watercraft |
J**.
Worth the price.
Honestly when you're doing marine engineering work this product is top notch. Exceeded expectations. I use this multiple times through out the year and I noticed a difference. Quality fuel system cleaner. Not cheap but works.
M**K
Excellent product
Really good stuff. Notable performance improvement after using this
R**R
Cleans well
Bought more than once. Cleared sputtering and hard to start engines on power generators and lawn mowers well. Highly recommend.
R**S
easy to use
easy to use , great product
A**R
Recommend for boat motors.
Increases motor efficiency .
R**O
Very good luck with this product resolving issues!
I have used this product two seasons to treat the engine for build up and had good results where some engine sputtering or bad gas issues were either causing full throttle power issues or sputtering. In both instances refreshing the fuel and using this product I was able to get back to the engine running at full throttle with no issues. I change the fuel filter regularly and do use a marine treatment for ethanol however I think intermittent use of this product helps with carbeurator issues IMHO.
A**R
Best stuff out there
Good stuff! Packing and shipping was great, no spills or damage.
L**I
Works
Works great. Definitely worth the money
B**.
Good product
Trustpilot
1 month ago
1 day ago