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Review summary

Created with AI, based on recent reviews

Looking at 246 reviews, most reviewers were somewhat happy with their experience overall. Customers generally found the ordering process straightforward, though some encountered issues with additional items being added to their purchase without clear consent. Many expressed concerns about the product's effectiveness and the perceived inflated pricing compared to its actual value. However, some people were dissatisfied with the refund process, reporting difficulties in returning unwanted products or receiving their money back. There were also mentions of slow response times from the company when customers tried to resolve order or product-related issues.

What people talk about most

Product

Consumers find product to be ambiguous, with many expressing dissatisfaction due to issues like being charged... See more

Order

Clients share ambiguous opinions on order. Many reviewers report issues with unwanted items being added to... See more

Price

Reviewers mention negative feedback about price. Many customers feel ripped off, reporting unexpected... See more

Refund

People report negative experiences with refunds. Many consumers struggle to obtain full refunds, with some... See more

Response time

Reviewers highlight ambiguous aspects of response time. Some customers praise the very quick responses to... See more

Reviews shaping this summary

Rated 4 out of 5 stars

The support team was quick to respond and search a satisfying solution. I finally got a full refund for my order. However, all this experience would have been even better if from the beginning I wou... See more

Rated 4 out of 5 stars

I'm pleased with your response that you will honour your pledge to customers if they are not satisfied with the product thanking you once again for your help and kindness regards Peter. Please send... See more

Rated 4 out of 5 stars

Specific items were well explained. Items ordered with clear prices indicated. The "Original Prices" seem somewhat inflated at $895.06 for this order! But the "Total Savings" column brings the order... See more

Rated 4 out of 5 stars

The ordering of the item was first class The only problem was the delivery of the item it said in 5 to 9 days delivery at the moment it's took about 11 days and it's still not delivered.


Company details

  1. Car accessories shop

Written by the company

SynGas offers fuel-saving technology designed to help drivers reduce fuel consumption, lower CO₂ emissions, and improve overall vehicle performance. Compatible with most petrol and diesel vehicles manufactured after 1996, SynGas is positioned as a practical and cost-effective alternative to traditional ECU tuning. The SynGas fuel saver works by optimizing ECU performance based on driving habits, helping improve fuel efficiency while supporting smoother engine operation. The device is designed for quick plug-and-play installation without the need for tools or professional assistance, making it accessible for everyday drivers. SynGas focuses on helping drivers manage rising fuel costs through a low-cost fuel efficiency solution that can be used without permanent vehicle modifications. The device is designed to support modern driving needs while offering an easy-to-use option for drivers looking to improve mileage and reduce emissions.


Contact info

3.5

Average

TrustScore 3.5 out of 5

432 reviews

5-star
4-star
3-star
2-star
1-star

Replied to 84% of negative reviews

Typically replies within 1 month

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

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Rated 5 out of 5 stars

Easy to complete

Easy to complete. Hope the device does what it claims to do. Now to see if anyone has anything negative to report such as their car stopped working ;)

8 May 2026
Unprompted review
Rated 5 out of 5 stars

For a scam It was quick and easy to order as well…

It was quick and easy to order as well as quick to skip additional purchases and other products that kept popping up which you would expect from a scam , makes you rethink your views on the population of all the people and the no trust of anyone gets applied harder than ever leaving me to view the world a bit more jaded than ever.
Avoid this product and seller like the plague

9 May 2026
Unprompted review
Rated 3 out of 5 stars

I did get the product but with all the…

I did get the product but with all the negative reviews from mechanics I will not open it and return it for a refund
I was charged on one card even though it said "declined" but they did issue a refund so I appreciate that
Thanks
Mark Oakes

8 May 2026
Unprompted review
Rated 4 out of 5 stars

One problem occurred that cost me money I don’t have

I like 4 items I bought to help save gas in our vehicles, however I did not appreciate going through a number of “special deals “ to get to the finished order. And by doing so I who have severe arthritis in my hands and they swell, I therefore didn’t hit the move along button, I hit the order (big picture). There was no way of going back to amend the order. I’m leaving the site really frustrated

8 May 2026
Unprompted review
Rated 4 out of 5 stars

Specific items were well explained

Specific items were well explained. Items ordered with clear prices indicated. The "Original Prices" seem somewhat inflated at $895.06 for this order! But the "Total Savings" column brings the order down to my reality of $249.84. It would have been appreciated if there was an indication that the prices listed were in US funds, since the total in Canadian Funds was over $120 more!

7 May 2026
Unprompted review
Rated 5 out of 5 stars

No ads or pop ups

No ads or pop ups. Clear and consise. Easyto follow and the no I don't want works well. I can't Wait to try all the good things on my order.
Sincerely,
Terrie

7 May 2026
Unprompted review
Rated 1 out of 5 stars

Not the real deal

Followed instructions to "only buy genuine Syngas unit as other products do not give the same results". Ordered and paid AU$66.51 (after foreign echange to US$ and freight charge).
What I received was an ECO OBD2 not a genuine Syngas.
I could have bought the same item on eBay for AU$12.79 with free postage. Obviously a major SCAM.
I have since received a partial refund since they were unwilling to supply a return address for this fancy flasher which is all it was. Only pins 4&5 (-ve) and pin 16 (+ve) are connected. No other "data" pins are connected i.e. the unit is only a flasher and cannot in any way receive data from the ECU. I asked numerous times why I was not sent a genuine Syngas unit but all my enquiries were ignored.

8 May 2026
Unprompted review
SynGas logo

Reply from SynGas

UPDATE

Hi there,

Thank you for sharing the needed information.

We have located your order and can confirm that your case was resolved in the meantime.

Customer experience is very important to us, and feedback like yours helps us continue improving our products and processes. Thank you again for taking the time to share your experience with us.
____________________

Hi there,

Thank you for sharing your experience.

We understand how disappointing it can feel when a product does not meet expectations.

We are currently unable to identify an order based on the details provided, so we have reached out separately requesting additional information to better review your case.

We would appreciate the opportunity to look into this further and assist you directly.

Looking forward to your reply,
Roy from SynGas

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