Lucas Oil Deep Clean Fuel System Cleaner, 5.25 Ounce (10669)

I use Lucas products all the time. It was cheaper than buying it at the store and I put this in my Buick after every oil change. I will buy this again because it's a way better deal. I need to find myself at three Packers six pack of this.

This product is absolutely amazing and does clean the system. I can just tell after using it that my car is running better and smoother.

This product worked for me. If you need or want a fuel system chemical cleaner, give this one a try. I use this, and other Lucas Oil products in my vehicles.

Not sure if it helped much...got better mpg results with autozone shoppro product...

This is the one to buy. Although the octane booster is good , this one is far suogot the whole fuel system.

Used in my company truck. I’ve used several Lucas products over the years. My company truck get tons of abuse and not always serviced on time. I had a bit of a stumble on a load. This seemed to clear it up. Lucas isn’t a mechanic in a bottle. It helps the problem until the real issue is fixed.

Always good for the car

My car's engine was starting to "stutter" a bit when accelerating, nothing major but noticeable. My theory with "repairs" is to start with with simple and cheap. Added a bottle to my gas tank, car now runs smoother than ever. I'm a believer! I'm now adding to all my other engines too.