







♻️ Clean fuel, clear conscience, and a smoother ride—don’t get left behind!
Liqui Moly Catalytic System Clean 300 ml is a premium fuel additive designed to protect catalytic converters from soot buildup, clean injection systems and combustion chambers, and improve fuel combustion efficiency. Suitable for all gasoline engines with catalytic converters, including turbocharged models, it reduces fuel consumption and CO2 emissions. One 300 ml bottle treats up to 70 liters of fuel and its effects last up to 2,000 km, making it an essential preventative maintenance product for modern drivers.
| ASIN | B07Z54MBQ3 |
| Best Sellers Rank | #498 in Automotive ( See Top 100 in Automotive ) #4 in Fuel System Cleaners |
| Brand | Liqui Moly |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,870) |
| Date First Available | March 10, 2022 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 10.6 ounces |
| Item model number | 7110 |
| Manufacturer | Liqui Moly |
| Manufacturer Part Number | 7110 |
| OEM Part Number | 21994 |
| Rim Diameter | 300 Millimeters |
M**G
PASSED MY INSPECTION! THIS PRODUCT WORKS LIKE A MIRACLE DONT HESITATE TO BUY IT!
Inspection on my car due the end of January! My check engine light was coming on so I checked with a code reader & found it was a P0420. Read about the Catalytic Converter System possibly being in need of replacement or perhaps clogged. I am a woman, and know next to ZERO about cars, but I can read. Did investigate and found that the replacement of a Catalytic Converter system is mad expensive- also found this Moly Cleaner to add to gas tank. I'm not going to lie; I was nervous as I have a Kia Rio 2014 that has a very small gas tank and gets great gas mileage. In reading the consensus seemed to be to add to 1/4 tank of gas and drive fast for good periods of time to blow out the clog (if it was a clog). Did I mention I live in NYC and driving for long periods of time at high speeds can be a problem because of terrible traffic. Anyhow, this Saturday I poured the can into my 1/2 filled tank and hit a parkway near my home early morning. I did drive for 45 miles sometimes at 80mph then 60mph but tried to do it for a good few minutes at a time without getting pulled over. Checked my reader again, and it was not quite ready but the engine light did stay off. Next day, drove to work, stuck in traffic somewhat & never made it over 20mph & checked my reader again- all good to go for inspection. Went last night- my car PASSED and got that sticker in my window- so I am good for another year. The BEST money I have spent all year. Thank you for carrying this product! Saved me thousands! DONT HESITATE TO USE THIS. The hardest part for me was removing the cap on the can!
D**R
Actually worked!
This stuff actually worked! We put it in our 2014 Silverado 1500 with 200k + miles. It took about 2 weeks of driving though. Probably 2 tanks of gas. Check engine light went out. We had a catalyst code for a month or so before using this stuff.
I**U
It's worked. Very happy with product.
I dont leave many reviews but it was such a shock it worked after trying so hard to dix this car that i wanted to let people know it work. 2008 750li bmw had code p0430. I tried a few methods to clear code but didnt work. Even tried the gal of paint laquer in the gas tank but no go. To apply the Moly, I used a vacuum line from the intake manifold to suck in the Moly. Tons of smoke from esxhaust, it ran poorly and caused it to stall during the 10 min of applying moly. I thought I ruined my engine it was knocking, sputtering, and lots of smoke. After 20min of easy driving the car came to life, drove better and p0430 code never came back. Know how fast and how much should go into the intake is the tricky thing to know. Each car is different so you needs to figure out your own way to apply the moly.
M**E
Product seems to work?
2019 Ford F150-I bought this product with a 1/2 tank of premium gas in my truck. I had an emissions light on that I was told by my mechanic was catalytic converter related. Shortly after I poured the product in my tank (maybe 40 miles),the trouble light went off. The trouble icon stayed off for the next 100 miles but then came on again. After another 200 miles the trouble icon went off again and has stayed off so far about 1,500 miles later using regular gas.
I**Z
Works as it should and good quality !!
Works as it should good quality and I didn’t use it for any codes just as a preventative
J**N
Well worth it
Works absolutely amazing cleared my codes and vehicle is running much smoother and quieter definitely he would recommend for cleaning your system out
T**S
KILLED MY ENGINE
Neerd to update to ZERO STARS! Half the bottle went all over my hands because it is a poorly designed spout. Took my car onto the highway with 3/4 tank and this in the tank. Now my car couldn't go over 40mph. It was shaking and whirring and sounds as if it's about to die. FYI - I didn't have any codes. The bottle claims it's preventative to clean out a possibly clogged catalytic converter. I think it just killed my engine. DO NOT BUY. Class action lawsuit!
A**N
No Luck
No effective on my 2017 Tundra Used as directed Next step replace cat system
N**N
done
M**A
I used this product too cleane my car petrol tank it work so good my car exhaust before black smoke was coming out from exhaust lots lots plus one day police was behind me told me pull over onside I stop side police was asking me you have lots of black smoke coming out from the car can you explain why the black smoke I told the police I am taking my car too the gearge right now too fix it the police advice me the car law in uk he said you can't drive car it's smokeing lot it's agenainst the law I told him my gearge is near buy the police followed me he came to gearge speaking with the one staff told him do you know the law you can't drive car lots of smoke coming out from the exhaust you get fine the police officer said I not giving you fine I am letting you go if this happens next time if smoke problem not solved you get fine and liesence will be banned no driving the good things smoking exhaust cleaner put in the petrol tank it work so good the smoke is gone I completely recommend this product is so good 👍 full 5 star from now on I will keep one can In my car if I need it next time
E**L
Emisyon değerlerini kesinlikle iyileştiriyor, bunu yaparken ısıya ihtiyaç var, yaz aylarında uzun yol esnasında yapmakta fayda var. Bu sayede farklı devir aralıklarında daha etkili olacaktır. Ben 2 kutu kullandım önce 600 km lik yolun gidişinde, sonrasında tatil biterken dönüş yolunda. Senede 1 - 2 kez kullanmak etkili olabilir.
H**N
Muy bueno, sirve para lo indicado, limpiar el catalizador, en mi caso no se encendió ningún testigo pero al acudir a la verificación en mi estado, debido solo la usaba esporádicamente y cuando salía solo eran recorridos de ciudad por lo que al acudir el técnico del verificentro me indico que no pasaba debido a que el catalizador estaba tapado por lo que le agregara este liquido, la usara una semana (yo la utilice dos semanas) y que volviera y en efecto compare las dos papeletas donde muestra los niveles que saca en la prueba de emisiones y bajo totalmente por lo que si están en una situación parecida a la mía deben usar este liquido. Se debe agregar al tanque de combustible, yo lo agregue con 4/5 partes de tanque ya que no me quedo claro si debía estar el tanque casi lleno o lleno.
I**W
Prodotto efficace,ad oggi l'unico che è riuscito ad eliminare lo sgradevole odore di scarico che a volte penetrava in abitacolo,valido prodotto per pulire il catalizzatore.
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2 weeks ago
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