104+ Performance Fuel Injector Pro - Complete Fuel System Cleaner - High Grade Cleaner for GDI & Traditional Engines - Restores MPG & Restores Power, 15.9 fl. oz. (29214)

I continuously use this product for my older vehicle, a 1995 GMC Sonoma with only 69K, to keep the engine running smooth and prolong the life of my "baby".

I started with my 2014 Kia Soul and now I use it in my 2005 Chevy truck with 5.3 liter eng. my 2016 Kia Optima with 2.0 liter turbo eng. and my 2003 Mustang GT with 4.6 liter. They all run great with no issues and I want them to stay that way. The 104+ just seems to help them run smoother and trouble free on todays gas, I add a bottle to every other tank.

i have 2008 toyota rav4. Before i put this cleaner my car drive slow and when i pass the car in the high way even i press the gas , can not pass the car next to my car . After i put this cleaner in my car , I felt it it drive very fast after i press the gas.

I purchased two bottles of 104+® Fuel Injector Pro® for my pickup truck that had slipped down to just 16 mpg in highway miles. After two full tanks of gas treated with the 104+® Fuel Injector Pro® product, my gas mileage was up to 22 mpg. I will continue to use this product and highly recommend it!

I followed the directions and used two full bottles of this cleaner with two fresh fill ups of fuel. Wow! I can really feel the difference. I have used other cleaners that don't do anything, but with this product, after the first tank could tell a difference. The idle is smoother and acceleration is much more brisk. Before, the car used to seem a little sluggish, almost like it would labor to get up to speed at times. Now, it feels like it just had a tune up. [This review was collected as part of a promotion.]

I recently received this product and felt it would be a good choice to try in my lightly driven 2nd/ third car. It had had a slight unsteady idle while at traffic lights. I added this with refill of regular gas. I have noticed a improved idle so far. With added driving I expect the idle to be smooth. Car currently has 181572 miles on it.

Received a 16 oz. bottle in the mail and used it ni my 2014 Kia Soul 1.6 liter engine with 6 spd. standard trans. Vehicle had approx. 13000 miles on it when I filled it with 89 octane Shell gasoline (I always use 89 octane in this car) and 104+ Fuel Injector Pro. Car seemed to have more power and very smooth idle, drove around town and on freeway and got a little better gas mileage. This car has GDI and I was starting to feel a little rough idle, it's gone now. Wish you would market it out here on the west coast (Seattle area) no auto parts stores carry it as of now. I'm going to order some and hope to start seeing it on the shelf out here in future.

I bought this to put in my wife's Jeep Patriot that has about 110,000 miles on it and it really seemed to give more power in the pickup. We'll see if there is a long term impact.

Noticed an improvement about halfway into a full tank

A little on the expensive side, but my first treatment seemed to work well with some improvements in performance noted. Is this product as good as or better than Lucas? I'm not sure there is overall much difference between these top two fuel system cleaners...