Hot Shot's Secret Gasoline Extreme 32 Oz, Concentrated Fuel System Cleaner, Fuel Additive for Gasoline Engines, Injector Cleaner - Increases MPG & Restores Engine Performance

Stuffs pretty good. I used two of these over the passed few months in my 2008 Expedition. With 180k miles I could clearly hear the injectors. After using this in the tank for the past two oil changes it's absolutely silent. Avg mpgs have gone from 14.7 to 15.8-16.0mpg (city) in my last 2 tanks of gas. I'll jeep using one every few months. But I'd recommend this if you're experiencing the same issues.

Love this stuff I usually use the diesel stuff but I got this stuff for my wife’s car and my gas work truck works great’s

Used it on my new daily car. Under 5k miles but stop and go traffic, about 2+ years old.now getting better milage.

Good stuff it works well n my vehicle's

Hard to tell if it works but didn't have any issues. 'Seems' to do its job. Maybe more of a placebo.

So far so good!👍🏻 I can definitely notice the over all improvements... smoother idle & performance. I use the oil additive too.

Great product. I use this a couple times or so a year to keep everything clean and running smoothly.This is my 4th or 5th time purchasing this stuff and I love it! Used to be a lot cheaper but it is what it is lol.

I keep up on maintenance so I didn’t notice a big difference but that’s why I use it - to maintain a clean engine.