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Fitch Fuel Catalyst - F4624B

Bolt on Fuel Treatment Kit
  • $271.65
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  • Ships Between 1/23 - 1/25
  • What Do You Drive?


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Fitch Fuel Catalyst Part #F4624B Customer Reviews

Average Rating

6 Customer Reviews

Fitch Catalyst

Reviewed by Scott J (SUWANEE, GA) Reviewed for a 2010 Ford Mustang — Apr 17, 2015 1:24 PM

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Purchased because a good friend of mine swears by these. He runs his 2014 HO Jeep on a 93 octane tune with regular, also swears it improved his mileage. I'm not one for snake oil but it does work. I can run mid-grade fuel with a 93 oct tune, previously even 93 fuel would periodically ping. I have also noticed 1.5 - 2.0 MPG better fuel economy. I am very pleased not to have to buy premium for daily driving.

fitch catalyst

Reviewed by eric h (DUNEDIN, FL) Reviewed for a 2007 BMW 3-Series — Feb 18, 2014 9:35 PM

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3 of 7 people found the following review helpful.

Easy installation and improved performance.

Surprise product

Reviewed by Steven R (Anthem, AZ) Reviewed for a 2010 Nissan Titan — Jun 18, 2013 9:32 PM

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4 of 7 people found the following review helpful.

I love my Nissan Titan but the only complaint I have about the truck is that the fuel milage is pretty bad compared to previous trucks I've owned. So I bought a Fitch Fuel Catalyst and a Superchips Codex to experiment with. Long story short, I was able to gain 2 real mpg's average after a lot of controlled testing using this combo. More testing to come.

Fitch Fuel Catalyst

Reviewed by Reymond K (SALEM, OR) Reviewed for a 2012 Hyundai Genesis — Sep 06, 2012 8:31 AM

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17 of 18 people found the following review helpful.

Been using these for years; and have had good results with every auto application. What changes is the ability to use regular gas in a high compression motor (11:1)with no measurable timeing roll back and no detonation. Regular gas has a bit more energy, and this is reflected in better gas mileage. Suggest anyone considering this product first research John Fitch on Wikipedia, and then go to the Fitch site.

2010 Nissan Armada 5.6 liter

Reviewed by Cristian S (Coral Springs, FL) Reviewed for a 2010 Nissan Armada — Jun 11, 2011 5:00 PM

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22 of 26 people found the following review helpful.

I been looking for ways to save on fuel. This beast love to eat so had I had to put him on a diet. The Fitch Fuel Catalyst worked, I gave it a week to see how much fuel I was saving and I am averaging between 2 to 3 mpg. I installed it in the engine compartment driver's side radiator cover. You will need a special tool to remove the fuel clip and once your remove that, I just had to remove one screw on the top right side of the radiator and replaced it with a longer screw. Total install took about 25 min.

A little skeptical???

Reviewed by Michael B (Kansas City, MO) Reviewed for a 2008 Nissan Titan — Mar 20, 2009 9:48 PM

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20 of 27 people found the following review helpful.

Looks like the fitch system works to me. I have noticed a gain around 1-1.5 mpg increase. Couldn't tell you how easy it is to install since I had my Nissan dealer do it for me. I didn't feel like messing with the fuel lines on my truck. Get one, I'm pretty sure you'll notice an improvemnt in mpgs.