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

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.

This stuff works! I've noticed a difference in performance and emission tests are better with it than they were before using it.

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

Good stuff it works well n my vehicle's

after only 100 miles I noticed a dramatic difference during engine idle, much smoother, 100 less rpm. Several times at traffic lights, I had to look at the tachometer to assure engine was still running, because it Was so smooth. I did not notice an increase in fuel mileage. I would recommend using a funnel to pour in the tank. the bottle threads are raised and coarse, much more prominent than other brands I have used. I got the bottle stuck behind the tank inlet flapper, and it took some careful prying for about 10 minutes with a long screwdriver to get it back out.

I run this Gasoline Extreme additive in my antique pulling tractor every time it goes down the track. Since I began using the additive my spark plug service life has increased significantly. These old girls run extremely rich right up until the very end of a pull when they come under load. This usually leads to frequently fouled plugs; but not anymore. I’ve also been able to run a more aggressive timing curve without encountering pinging or spark knock.My usage case is somewhat niche, and the ancient technology I’m running allows me to run a very heavy dose with little worry about damage. Therefore you’re results may vary but I’ll continue to run Hotshots Secret Gasoline Extreme as long as the rules allow.

I’ve always used their products in my diesel trucks. The additive from klotz I used in gas engines is no longer available. This additive seems to be nearly as good and much more available

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.