Liqui Moly 2030 Pro-Line Gasoline System Cleaner, 500 ml, 16.91 Fl Oz (Pack of 1)

I’ve now used LIQUI MOLY Gasoline System Cleaner on all three of my cars with over 80,000 -170,000 miles—and the results speak for themselves. I have a 2004 Mercedes ML350, a 2012 Hyundai Elantra Limited, and a 2016 Lexus RX350. This product has helped each one run more smoothly and efficiently, even at their age and mileage.Mercedes-Benz ML350 (W163):With a high-mileage V6, this SUV had started feeling a bit sluggish—especially on cold starts and uphill acceleration. After using this cleaner, the throttle response improved noticeably, and the idle became more stable. It didn’t suddenly turn into a new engine, but it definitely felt less bogged down and more responsive, especially at low RPMs.Hyundai Elantra Limited (2012):This car showed the most fuel economy improvement. Before use, I averaged 25–27 MPG. After running a full tank with LIQUI MOLY, it bumped up to around 30 MPG, and the engine felt smoother under load. It’s a small gain, but for a daily driver with over 86k miles, that kind of improvement adds up over time.Lexus RX350 (2016):This engine was already running well, but I use the cleaner bi-annually as preventive maintenance. I noticed slightly better responsiveness when accelerating, especially from a stop. It’s subtle but definitely there. I believe using this regularly helps prevent future build-up and keeps things running optimally.Important Note:These products aren’t magic potions that make your car run like new—but they do help clean and restore your fuel system over time. I use it as part of my bi-annual maintenance schedule. Combined with using high-quality gasoline and regular servicing, this cleaner helps keep all three of my high-mileage cars running smoothly and reliably.Bottom Line:LIQUI MOLY is a well-engineered, trusted brand, and this cleaner has proven itself across three different engines. I highly recommend it—especially if your car has 100,000+ miles. It’s affordable, easy to use (just pour it in before filling up), and makes a real difference when used consistently.

Got this to pour into my 2003 Honda element which is at almost 200k miles. Heard good things about this product. And the fact that it’s worth pouring into a car with higher miles.Really easy to use and quick.

Funciona bien, mi vehículo Cambio un 100%

Perfect for German cars.

Love it, great quality product, used ever so often with maintenance. Very easy to apply. Definitely recommend to improve longevity and quality of vehicle

I can't fully dump all the content to the gas tank of car, quite some remains in the can. Easy to use, I just pour the content into half tank of gas then refill the tank, my 20 years old car runs slightly better after using it. Poor(or no) manual printed on the can, just couple of words in the website.

Estaba teniendo problemas de consumo de gasolina ( en Costa Rica la gasolina es pésima) en mi jeep Cherokee KL2019 me empezaba a marcar 25 l por cada 100 km de consumo algo que no era así estaba escéptico así que utilicé el producto hoy mismo llenando el tanque de gasolina y utiliza el carro aproximadamente 10 km Los consumos bajaron en esos 10 km hasta 19.8 l por cada 100 es increíble y eso que apenas se bajó una rayita en el consumo del tanque de gasolina quiero esperar cuando se consuma todo el tanque y luego agregarle el limpiador de inyectores de Liqui Molly

Great , L Moly makes great products, sisters 10year old car got a weird engine code related to gas and running rich or lean, I sent 4 bottles of this to her and told her to use is back to back, well the engine code is gone, so it was dirty gas or dirty injectors or dirty valves , every 10,000 miles I normally try to use 2 bottles back to back of this cleaner or other cleaner driving at highway speeds on long trip to clean everything out ( normally gas in the US and gas from quality gas stations already have cleaners in them, but it never hurts to keep the system clean, way cheaper than a mechanics bill )