Please never change the way ur fuel injector is made,i tryed all others stp,baural,motor master and more, when my 4x4 sierra truck was acting up and the fuel was going fast, i was told bite the cost it will work ,now its all i use, and im so impressed

I really don't want to put a lot of money into this car and decided to try an additive. Against my better judgement I tried a competing brand that was on sale and it did absolutely nothing. I then bought a 5.25 bottle of Lucas Upper Cylinder and Injector Cleaner. I emptied it into a 1/4 full tank and drove about 5 miles to a gas station. I filled the tank, left for home (about ten miles) and by the time I got home the problem was solved. Four weeks later it's still running strong and has not stalled once. Lucas products have never let me down.

I bought some Lucas Oil Fuel Injector Cleaner today and it worked great on getting the dirt out of my Ford Crown Victoria P71 fuel injectors. Im going to recommend it to all my family and friends. Thank you Lucas, Darryl Burke

Just wanted to let you know that for the last 6 months on the recommendation of my mechanic, I have been using the gasoline/diesel fuel additive to my 2004 F250 v-10. I get an honest 1 mile per gallon gain in fuel mileage plus the truck runs better than ever. I just returned from a 3,500 trip with a 2,000# truck camper in the bed on got a 11.58 miles per gallon average for the entire trip. I was hoping for 10mpg. I will continue to use your product and I recommend it whenever I can!

My check engine light was on and car missing at speeds under 40. I started using your injector cleaner and my car, 1995 Nissan Altima, is running great and has picked up 8 mpg.

I waited. After 3,000 miles and no improvement, I stopped at an autoparts store and bought a quart of fuel additive. The engine started to run smoother. 100 miles later, no smoke, the engine runs smoothly, it no longer downshifts going up even steep grades. I now get at least 42 MPG and the car is wonderful.

I have used a couple of Lucas products in the past but never something that has worked so incredible, saw the ad on TV and not a big fan of gas additives but decided to purchase Lucas Fuel Injector treatment. My Audi TT was like a new car again after driving about 125 miles it really perked up!

To whom it may concern. I use you Lucas Oil Fuel Treatment product on my 2001 Toyota Tacoma 3.4l V6 every time I fill up. I see an average of 4-5 extra miles per gallon improvement over not using it. I have also used it in my 2006 Porsche Boxster S at every fill up. I love your product and the price is awesome.

Just wanted to say that your gas treatment works great. Gained 4 miles to the gallon. Runs really great. No more stumbling. Glad to see somthing actully work and the price ws great.

LUCAS UPPER CYLINDER LUBRICANT IS A GREAT PRODUCT . I just purchased the one gallon bottle and i am very impressed with the results.My brother uses it in his racing car and swears by the great performance from using this product.I am a customer of lucas products for life.