Rated 4.9 out of 5 by 20
Rated 5 out of 5 by Rinaldo Lucas Oil Fuel Treatment
Been using this product for years, with the low grade of fuels it does help improve miles per gallon. The most important aspect it ability to lubricate the upper cylinders and injectors.Buying it by the gallon is the best way to go !
October 24, 2016
Rated 5 out of 5 by Flipcard1 Lucas in all my fuel.
This is basic fuel system maintenance and upper cylinder lubrication. Both of these areas are neglected by the average consumer. Since Lucas works with Diesel systems, I also use it in my Cummings powered truck.
October 11, 2016
Rated 5 out of 5 by RAM2 Works great
Keeps engine running smoothly. I can tell by my mpg when I've forgotten to use it because it goes down by about 2 mpg, but for a full size truck that makes a big difference. Also I can tell my by emissions because when I get really on the engine and I don't have it in I can see some black smoke come out. When it's in its not there.
October 6, 2016
Rated 5 out of 5 by Mac1 It works.
I use in all 4 vehicles.
August 16, 2016
Rated 5 out of 5 by MrLucas Lucas #1
Excellent product...Have been using it for over 160,000 miles. The treatment keeps the fuel injectors and upper cylinders CLEAN also- Causes fuel to burn more efficiently for greater fuel economy and fewer emissions. Negates the harmful effects of “reformulated gasoline. Neutralizes the harmful effects of ultra low sulfur diesel fuel. Lubricates rings and cylinder walls for longer life...
August 14, 2016
Rated 5 out of 5 by KWilks Stuff works
I use this stuff all the time. This is the only product in this category that I've actually noticed an improvement in MPG. I bought the gallon to refill the smaller container I previously bought of this stuff. Online discount code makes this very affordable.
May 14, 2016
Rated 5 out of 5 by Prilep Great quality
I always use this product and I am very happy with
October 2, 2015
Rated 5 out of 5 by ZDZICH LUCAS 1GAL FUEL TRT
THIS PRODUCT IS THE BEST
September 30, 2015