I initially added 12oz to a near empty tank and drove it hard for a bit then let it soak in over night. I’ve been decreasing the amount that I add with each tankful thankful that I have a gallon. The car feels a bit stronger but there is no improvement in gas milage, which I calculate with each fill-up. I can almost feel that the injectors, valves seats and from the piston rings up is better lubricated and 200,000 miles of varnish and carbon are ever so slowly dissolving. It helps to imagine.

Package was NOT handed to us. It was left in the driveway 150 feet from the house. Great product butlousy delivery today. Suspect not our normal driver who does a great job.

This stuff was a lot thicker than I was expecting it mixes with gasoline or diesel very well I have been using it in various engines big and small diesel and gasoline. No noticeable better MPGs. The only thing I seem to notice is that everything runs a little bit smoother and quieter and idles better. I don’t feel like it is a necessary product but it will just make what you have run a little bit better. I’m hoping it will make my engines last longer. Good value when you buy the gallon.

I have already bought it several times for my diesel vehicle. The first time I bought it, was a detonation of black smoke that even scared me, apparently it was a cleaning that he did. related to performance I have not noticed a significant or marked difference, but the combustion feels more fluid and stable.

I use this at almost every fill up. It works and lubricates and quiets lifters and ticking. My truck engine had a ticking noise while idling. I started adding this and the ticking went away and the engine runs smoothly. I was gassing up the truck yesterday an I could hear it ticking because I had left it running for the AC because there were people in the truck. After filling up the 25+ gal tank I added this, I was surprised and amazed that the ticking noise stopped instantly and the engine was

Whenever there is hesitation in my car, it is time for Lucas. Resolves the problems every time. Buy in bulk. That's my feedback.

I buy this big one cause it is so much cheaper and is enough to put in my ATV lawnmower and car truck and suv all in one go. Cant say it helps get better mileage but it is so cheap I feel better using it than if i didnt

I use this in all my fuel for my chainsaws, lawn mowers, boat motor, wood splitter as well as my motorcycle, 4 wheeler, 63 ford galaxie 500xl , 64 ford f100, 2019 Ford Edge and my new F250 also my backhoe and dump truck. Use a little extra just before I store my toys.

I had 250 gallons of gas in my boat with no stabilizer for about 5 months. When I started it to get ready for the season it ran very rough. I bypassed the fuel line to a tank of fresh gas and it ran great. The gas in the boat was going bad! I added the Lucas treatment to a 5 gallon can of the bad gas to see if it would help and was surprised at how smooth it was running. I added about 3/4 of the gallon jug to the boat tanks and am now going to be able to run that gas instead of replacing most…

I have purchased three gallons over time and I swear by it. I have a 2002 Pontiac Trans Am and a 2013 Infinity QX56 that I use this product in. I also use it in my Suzuki motorcycle. There has been a definite improvement in all three vehicles. I highly recommend this product and buy it in the gallon size to save money. You will not be disappointed.

Definitely a noticeable difference when you use this in the tanks. More of a difference in certain model vehicles. Highly recommend for tank fills. Esp if you are in between using regular and premium fuel and premium is too much for you to use every tank when your vehicle doesn’t need it. Worth it for sure.