Testimonials

Lucas Fuel Treatment is an awesome product.

Randall B., Comanche, TX

I have used this in all my vehicles. So, I knew that it was a quality product. Recently, my son had trouble with his lawn mower. He had let it set over the winter with gasoline in it; unfortunately, the gasoline contained ethanol. When he got ready to use it again this year, it would not start. We emptied the gas out of the tank. We replaced the fuel filter and all the fuel line hoses. The carburetor is complex, so we did not mess with that. We finally got it started, but it ran rough and it only ran at an idle speed, even though it was full throttle. We contacted our local small engine repair shop. We were told that this often happens if you let an engine sit for an extended period of time with ethanol fuel in it. We were told that the carburetor would have to be rebuilt and that would cost about $1,000. Instead, we decided to try the Lucas Fuel treatment. I checked the website, and it said that overtreatment would not harm your engine, so I put the whole 5.25 Oz bottle into 5 gallons of fuel. We put new fuel in the lawn mower and started it. After five minutes, it started running smoothly, but still at a reduced speed and it was smoking badly. After 10 minutes, it was running at normal speed and all of the smoke was gone. It would appear that this fixed the carburetor problem and saved me $1,000. I learned 2 lessons from this. First, never use gasoline that contains ethanol in a lawn mower. And, second, Lucas Fuel Treatment is an awesome product.

Really has made a difference in the performance of the engine

Gordon W., South Burlington, VT

I have been using your upper cylinder lubricant in my 2014 Camaro since it was new. Really has made a difference in the performance of the engine. Not to mention that it helps keep the intake, injectors and the valves clean. One of the best things you can do for your engine. Lucas products are the best out there and a great value too.

After 30 Miles The Rough Idling Subsided

Henry G., Lawrenceville, GA

At 65 years old not much surprises me. I have NEVER used additive in an auto. I have a 2012 Hyundia Genesis with 209,000 miles. It was idling rough. I'm thinking I need a $300.00 cleaning at the dealership. I decided for once in my life I would try an additive. I went to Walmart and of course they had 50 different kinds. I pick LUCAS because they are very reputable company. OK let get to the meat of this story. I put 6 oz of LUCAS UPPER CYLINDER lubricant in my tank. My hand on a bible after 30 miles the rough idling subsided. I would not believe this if it had not happened to me. Jaw dropping moment.

All turbo and exhaust brake function has returned to normal saving me at least $1500 to $2,000

John I., Tygh Valley, OR

My 2008 Dodge Ram 3500, 6.7 Turbo Diesel was plagued with code 0340...sticking turbo vanes. All remedies pointed to turbo removal. After a gallon of Lucas Fuel Treatment the code has cleared and all turbo and exhaust brake function has returned to normal saving me at least $1500 to $2,000. Thank you Lucus! If only more Dodge owners knew.

Fuel Treatment Stops Stalling in Honda

Frank A.

My 2001 Honda was stalling every two minutes. I went to my mechanic, he said he was way behind on some cars that he wouldn't be able to see my car until tomorrow. He gave me a small bottle of your fuel injector cleaner. Told me to pour it in the gas tank an drive it for 10 - 15 minutes... It was running smoother then silk after about 10 minutes.. I had never seen a additive of any sort actually work. I put a bottle in each of our cars once a year now. Thanks!

348,000 Miles on 2004 Porsche Cayenne with Lucas

Mark D., Philadelphia, PA

I own a 2004 Porsche Cayenne and have 348,000 miles. I contribute the high milage on this vehicle to the use regular Lucas gas additives. Nobody believes I have that milage on it and I tell them all to use Lucas!

No more sticking valve, it works great.

David R.

I have 5hp Honda engine mounted on a log splitter which are notorious for sticking intake valve, cannot get engine started unless you pull valve out and clean. I use 1/2oz.of Lucas Fuel Treatment in every tank of gas, no more sticking valve, it works great.

It’s incredible and actually works and works well.

Richard H.

A 2003 Chevrolet V8 5.7 L engine with 273,000 miles. The engine is excellent, has excellent combustion, I replaced all the spark plugs, wires and everything I could think of to get rid of the check engine light that indicated a misfire in a cylinder or an EGR related or catalytic related error code. I'd almost given up and was just in the process of changing the EGR thinking that might be defective, thought I would try for the first time this Lucas fuel injection cleaner [Lucas Fuel Treatment]. I added probably the recommended amount, maybe a little more to the existing 20 gallons in the tank and almost immediately the check engine light went off and did not come back on. The engine also appears to start easier and run a little better, but it's too soon to tell as I've just treated it and I've only driven the truck maybe 40 or 50 miles - but by some miracle that check engine light is not coming back on and the engine appears to be running as good as ever. I have tried Chevron Techron many times, thinking it was probably one of the best cleaners available - but I don't think that's true, while it does work your product appears to work much better and I suspect I may have had partially clogged fuel injectors. Because the catalytic converters were replaced 15k miles ago when I bought this 3500 Express 1ton van, the O2 sensors have all been replaced and I would still get this engine misfire error code or emission-related error code. Your product appears to have solved my problem. I just went to Amazon today and ordered another gallon and will be looking into buying much more bulk quantity of your product and putting it in all my engines. It's incredible and actually works and works well.

Our mechanic has mentioned that our cars run great due in part that we use the Lucas products.

Chris R.

I have 2 VWs, a 2004 Passat 1.8LT Tubo with 271,000 miles and a 2009 VW Tigaun 2.0LT with 156,000 miles. Both cars are running great, and one of the reasons is because every 10th fill up we add the Upper Cylinder Lubricant and Injector Cleaner. Our mechanic has mentioned that our cars run great due in part that we use the Lucas products. I recently met the [Lucas] National Sales Director and he was kind enough to explain how the product works at keeping the fuel system clean. Keep up supplying great products.

I want to say your products are amazing.

Louis O.

I want to say your products are amazing. I have a 95 Toyota 4Runner with the 3.0 V6 and the car is very sluggish on Hills especially when towing my boat. I went fishing and put a bottle of Upper Cylinder Lubricant in the gas tank on the way up and one on the way down. Well, now that I’m back the car now has more power and better fuel economy. I was very impressed and now use it on a daily basis. The car has over 203,000 miles on it and it runs better than its ever been. My next experiment is your oil stabilizer in my dads truck. That’s a 89 Toyota pickup with over 281,000 miles on it and it will hopefully take away some of the knock and help the 20w-50 weight oil flow better in the cold mornings. So thank you Lucas Oil and I plan on buying more of your products!