104+ Performance (10406) Octane Boost - Boosts Octane And Cleans injectors To Improve Engine Performance - Improve Gas Mileage - 1 Bottle Treats Up To 18 Gallons, 16 fl. oz.

I have tried a few octane boost formulations and I have found that 104+ is the first one to show actual physical gains that make a real difference on the road and on the dyno. For the price, even if you never get to test on a dyno, you will notice a huge difference in throttle response and acceleration once the bottle is fully mixed in the tank and running thought the fuel system. Now this is not for flex fuel vehicles, but does make a huge difference in Turbo powered V6 engines and V8 engines, you will be pleasantly surprised.

I've been using this stuff for decades. It's great, increases power and cleans the fuel injectors as it states.

If you just recently bought a jdm car this might be in order. From my understanding, other countries uses higher octane than here in the states. The ecu in those countries might be looking for higher octane. I mixed 3/4 of a bottle with a full tank of 91 octane. After doing that, the engine seemed a lot smoother with better performance. Good value.

worked as stated

I have a vehicle that needs 89 octane. At Costco they have 87 and 93 octane fuel. I don’t want to spend extra money on the 93 octane fuel so I just use octane booster with the 87 octane gas. I’ve used other octane boosters but never really felt any difference in acceleration but I do with this product. It’s also more affordable than other octane boosters. The engine really runs good using this octane booster. It’s a really good octane booster that really works and it’s affordable.

This stuff is the real deal! Huge HP gains and car runs like new again. Use at every fill up for maximum hp! I would never run a tank of fuel without it again!

104 octane has been around for a very long time have used this product for many years I mixed with regular gas to bring up the numbers so I have no detonation good stuff.

Excellent product. That is necessary for certain high performance engines.