Lucas Oil Fuel Additive, Upper Cylinder Lube, System Cleaner, Lubricant, 1 gal Jug, Diesel/Gas, Set of 4

Used this fuel treatment in my daily driver and noticed better throttle response after a full tank. It helps clean injectors and adds some upper cylinder lubrication. Easy to use and worth the small investment to keep things running right. Highly recommended for routine maintenance.

I'm impressed! I didn't expect this to work, but I actually noticed a few things:- Car starts up much faster (less "cranking" required to start the engine)- Feels a bit smoother and more powerNot sure if its placebo but it definitely seems like it works! Considering this is so cheap, I will definitely buy it again.

This stuff is incredible. My range went from around 390 to 413 and it keeps climbing. That’s about 5% increase of range. My long term average MPG went up 0.2 mpg after only 2 tanks. Those numbers don’t lie. My car also feels way more responsive. I’ll keep adding this stuff to every fill up.

I've been using this product for many years and have had numerous vehicles go well over 200,000 miles with no fuel issues. Keeps the injectors and carb clean.

Product was in good condition and then delivered the next day

Have been using Lucas products for a very long time, no complaints, only quality products that actually work. Bought a newer vechile this last January, 2015 Pathfinder, and it was not getting quite the gas mileage I was expecting, starting using this Lucas upper injector cleaner before I did a extensive and expensive coil and plug change, as I have with every vechile I've owned the last 20 years, and after only a few fill ups, had improved gas mileage by nearly 2 miles per gallon. Tried about every other brand on the market, nothing comes close!

Lucas hit it out of the park with this product. It keeps the fuel system, including injectors, fuel lines, and upper cylinder of your engine clean. This is my third gallon of this product I bought. I keep a single use bottle filled with this in my truck, and I try to use it with every fill-up. I've missed a few, but for the most part every time I fill up, I put in a small bottle of this and just refill it when I get home. I have a friend who had a lifter/cam failure on his 5.7L Hemi. While scoping the engine to look for metal shavings, the mechanic commented on how clean his top end was, and definitely didn't look like an engine that had 100K+ miles on it. Admittedly, he didn't change his oil as often as I do and learned a hard lesson. I was sold on this product then, and have been using it ever since, and will continue. It's just good insurance. These new trucks aren't cheap, and this product, along with a quality synthetic oil & filter changed regularly help keep our expensive trucks running smooth for a LONG time.

I received my gallon of Lucas oil treatment today, put 30 ounces in tank of 30 gallons fuel, 06 dodge 2500 hemi engine, i had to see results to believe it, instantly engine ran smoother i could not believe it without seeing first hand , i will be using Lucas treatment for ever now, thanks Lewis , the engine ran so much better i had to go for a 10 mile drive this is going to be a miracle. This is a update i have used this Lucas in my john deer riding mowers makes them run better and start without using choke to start engine, used in Husqvarna leaf blower could see big difference instantly, i am 83 and this is a miracle product, without seeing would not believe. Thanks Lewis