SynGas Review
Fuel costs can add up quickly, especially for people who commute every day or drive larger vehicles. SynGas OBD Fuel Saver is marketed as a simple plug-in device designed to help drivers improve fuel efficiency without expensive vehicle modifications.
You simply connect it to your car’s OBD2 port and continue driving normally.
But is SynGas actually worth trying?
SynGas OBD Fuel Saver
★★★★☆ 4.3/5
Category: OBD2 Fuel-Saver Device
Best For: Drivers interested in monitoring fuel efficiency
Installation: Plug-and-play
Calibration: Around 150–200 miles
Starting Price: Around $39.99
Guarantee: 30 days
What It Is
SynGas is a compact device that plugs directly into a vehicle’s OBD2 diagnostic port, normally located underneath the dashboard.
According to the supplied product information, SynGas is intended to communicate with the vehicle’s ECU and adapt to driving behavior.
The manufacturer markets the device as a way to optimize fuel-related engine settings and potentially improve fuel economy.
No smartphone app, professional installation, or permanent vehicle modification is required.
Starting around $39.99 · 30-day money-back guarantee
How It Works
Installation takes only a few minutes.
With the vehicle switched off, locate the OBD2 port underneath the dashboard and insert the SynGas device.
Press the reset button and follow the supplied calibration instructions. The device then requires approximately 150–200 miles of normal driving to gather driving information.
The product is marketed as using this information to adjust its operation according to driving habits.
It can also be unplugged if you no longer want to use it.
The Verdict
SynGas has one obvious advantage: simplicity.
There’s no complicated installation, subscription, smartphone app, or permanent modification. Plug it into the OBD2 port and drive normally.
However, buyers should keep their expectations realistic.
The supplied marketing material claims fuel-consumption reductions of 15% to 35%, but the attached content doesn’t provide controlled independent testing establishing that typical drivers will achieve those savings.
Actual fuel economy is affected by many factors, including vehicle condition, engine type, traffic, speed, tire pressure, weather, and driving habits.
For around $40, SynGas may appeal to drivers curious about an inexpensive plug-in fuel-saving device, but it shouldn’t be purchased with the expectation of guaranteed MPG improvements.
4.3/5 — Editor’s Rating
What We Liked
- Simple plug-and-play installation
- No mechanic required
- Compact OBD2 design
- No smartphone app needed
- Removable rather than permanent
- No routine maintenance
- Relatively inexpensive
- 30-day advertised guarantee
What to Keep in Mind
- Fuel savings aren’t guaranteed
- Advertised 15–35% savings may not reflect typical results
- Requires a calibration period
- Results can vary considerably between vehicles
- Requires a compatible OBD2 vehicle
- Similar-looking OBD devices may vary significantly in function
Check current SynGas discounts and availability.
SynGas Price
According to the supplied offer, current advertised prices are approximately:
1 × SynGas — $39.99
2 × SynGas — $69.95
3 × SynGas — $82.95
Prices and promotions can change, so checking the current offer before ordering is recommended.
Who Is SynGas Best For?
SynGas may appeal to daily commuters and drivers who want a low-cost, easy-to-install OBD2 device without making permanent changes to their vehicle.
It may also interest people who drive several hundred miles each month and closely monitor their fuel consumption.
Drivers should compare their MPG before and after installation rather than relying solely on advertised savings.
Frequently Asked Questions
What is SynGas?
SynGas is a small plug-in device designed to connect to a vehicle’s OBD2 diagnostic port. It is marketed as an OBD fuel-saving device intended to improve engine efficiency.
Is SynGas easy to install?
Yes. According to the supplied instructions, installation involves locating your vehicle’s OBD2 port, plugging in the device, resetting it, and completing the calibration process.
How long does SynGas take to calibrate?
The supplied information recommends driving approximately 150–200 miles before evaluating results.
Does SynGas really save 35% on fuel?
The product material advertises potential fuel-consumption reductions of up to 35%. However, the supplied content doesn’t provide sufficient independent evidence to guarantee this level of savings. Real-world results can vary significantly.
Does SynGas work with diesel vehicles?
The supplied product information describes SynGas as compatible with gasoline and diesel vehicles that have a compatible OBD2 system.
Can SynGas damage the ECU?
The supplied material describes the device as removable and says it communicates with the ECU rather than permanently rewriting the factory firmware. Vehicle compatibility should still be confirmed before installing any third-party OBD device.
Can I use SynGas on another vehicle?
According to the supplied instructions, the device can be moved between compatible vehicles, but it should be reset so it can begin a new calibration process.
Is SynGas worth buying?
SynGas may be worth considering for someone who wants to experiment with a relatively inexpensive OBD2 fuel-saving device. Its plug-and-play design is convenient, but buyers shouldn’t assume that the advertised fuel savings are guaranteed.