Fuelsync Gas Saver Customer Reviews

If you’re considering purchasing our Fuelsync Gas Saver, we encourage you to take a moment to listen to what our customers have to say.

We greatly value your feedback and would love to hear your own stories and experiences after using our Fuelsync Gas Saver.

Customer reviews

4.95
Based on 20 reviews
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95%
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With images (0) Verified (20)
All stars (20)
R Linder
Haven't had it installed real long yet but according to my calculations it seems to be giving me 3 to 4 miles per gallon more so far and that's just city driving, hoping for even more on the highway.
Helpful? 0 0
robert
It works very well in my 2022” Honda Civic.?it boosted my mpg from 28-30 to 34-36. Every little bit helps. It’s already paid for itself
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William Roberts
It does really work. My car's mile gas range went from 423 miles to 477 miles.
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Timothy Guinn
Saves gas
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Duarte N. Nunes Vieira
Exelente producto desde el primer momento senti el ahorro de combustible, vale la pena el carro trabaja a menos revolución y ahorra
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Debbie
increased my gas mileage by 2 mpg. have to drive. it a bit before see the results but is effective
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robert jardine
Driving 20 miles all high way I gained 4 mpg driving a 2013 Chevy 4 door truck 5.3
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Del Angelo
Nice
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Peter Trudeau
2106 F150 5.0 getting 2. + miles more per gallon after a 500 mile trip highway and local roads Improved mileage on local roads 1.7- 2.0 miles Gal per
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redneck1
Well worth the money I noticed a difference in the performance of my truck it runs better and gas mileage is a whole lot better.
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craig and nan
Hello, We installed these performance chips on a freshly overhauled 1996 Chevy Corvette and a 2021_Chevy Spark. The gain,in power and torque is noticeable and gas mileage went up too. Some people said they did not work but there is a reset hole on the front of the performance chip that you use a wire or a,needle to push it in. Once its set if you remove it to work on the cars you do not have to reset them again. They have a memory and they will reconnect to your cars computer. The automatic transmission shifts quicker on both cars and they both have faster acceleration! Installation instructions are on the box!
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Michael Freeman
After a couple of weeks using this product and one of my trucks I could tell the different thin gas gaining about 3 mi extra to the gallon in a V8 I recommend trying it
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Patrice Jean
Great
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KS
I bought this in February for my daughter and myself. It may not look like it's working but now that I've taken a trip 4 hours both ways my gas suddenly jumped to getting 478 miles to the tank from 360 a tank I have a Nissan sentra. You have to give it time to work. It’s also for better for people who travel. Thats when i saw the difference and it stayed. The miles per gallon keeps going up. You all give up too fast. Update: I’m placing my second order. I gave my daughter my Sentra so I’m leaving the device in it. I bought 2025 F-150 power boost hybrid (the truck is amazing fyi ) I Travel long distances. I moved to the country in Ohio from Long Island NY and I travel there a lot. Again you won’t see results until you travel a good distance on a highway or road where you drive a straight run. Without stop signs and lights every 5 seconds. Once you do this your gas will improve the device needs time to work with your vehicle. It may take a month or 2. Don’t think you’re going to plug...More
I bought this in February for my daughter and myself. It may not look like it's working but now that I've taken a trip 4 hours both ways my gas suddenly jumped to getting 478 miles to the tank from 360 a tank I have a Nissan sentra. You have to give it time to work. It’s also for better for people who travel. Thats when i saw the difference and it stayed. The miles per gallon keeps going up. You all give up too fast. Update: I’m placing my second order. I gave my daughter my Sentra so I’m leaving the device in it. I bought 2025 F-150 power boost hybrid (the truck is amazing fyi ) I Travel long distances. I moved to the country in Ohio from Long Island NY and I travel there a lot. Again you won’t see results until you travel a good distance on a highway or road where you drive a straight run. Without stop signs and lights every 5 seconds. Once you do this your gas will improve the device needs time to work with your vehicle. It may take a month or 2. Don’t think you’re going to plug it in and have instant results. It doesn’t work that way
Helpful? 0 0
Bear
I bought this before a 2,000 mile trip. I noticed the difference around the third tank of gas. I went from 19 miles a gallon to 31 miles a gallon. It is still working almost a year later. I know it will not have the same results for all though for the price it is worth a try.
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Celena Petty
I decided to try the Eco Tuning Box Chip to help save on fuel costs, and I’m pleased with the results so far. It was super easy to install—just plug it into the OBD2 port, and it was ready to go. I’ve been using it for a few weeks now, and I’ve noticed an improvement in fuel efficiency, saving around 10-15% as advertised. This device is a great, budget-friendly way to optimize fuel consumption, especially for long drives or daily commutes. I would recommend it to anyone looking for a simple and effective way to reduce fuel expenses.
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Kandyman
I brought this eco gadget off the Ozzie home website. I don’t know what happened to the website,but I will tell you one thing this opti fuel gadget works I own a 1996 Lexus es300. I’ve driven 256 miles and I have used only 1/2 tank of fuel . Before using this gadget I got about 300 miles the most out a tank of fuel .These other gadget could be a scam because on his website it said you couldn’t buy it from that was a red flag right there…..
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Destiny Illingworth
product works so well keeps my numbers up
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lu
Good product and works greate
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James
It actually gets better mileage
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Buy Fuelsync Gas Saver

Take the first step toward getting more from every tank—buy Fuelsync Gas Saver today and experience the difference on your next drive.

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Fuelsync Gas Saver (Official Retailer) 2026

From: US$59.98US$29.75