What Is the SynGas Money-Back Guarantee?
The SynGas money-back guarantee is a 30-day full refund policy that comes with every purchase made through the official SynGas website. If for any reason you are not satisfied with your SynGas device within 30 days of receiving it, you can return it for a complete refund of the purchase price. The guarantee applies regardless of whether you found the fuel savings disappointing, experienced a compatibility issue, or simply changed your mind.
Full refund, no questions asked. The 30-day window starts from the date you receive your device, giving you adequate time for the calibration period and real-world testing.
Why the Guarantee Matters
The OBD2 fuel saver category has a trust problem. Many products in this space are non-functional, and buyers who have been burned by fake devices are understandably skeptical. A genuine money-back guarantee is the clearest possible signal that a company believes their product works. Non-functional products rarely offer meaningful refund policies because the company knows too many people would claim them.
For a buyer evaluating SynGas for the first time, the 30-day guarantee converts the purchase from a risk into a test drive. You get a full month to measure your actual fuel savings on your own vehicle under your normal driving conditions. If the results disappoint, the financial exposure is zero. This is how confidence in a product should be expressed. For a full analysis of whether SynGas delivers on this confidence, see our detailed review of whether SynGas works.
How to Claim the SynGas Money-Back Guarantee
Contact Customer Support Within 30 Days
Reach out to SynGas customer support via phone, email, or live chat before the 30-day window expires. Have your order number ready. The 30-day period begins from the date you received the device, not the order date.
State Your Reason for Return
Let the support team know why you want to return the device. This could be unsatisfactory fuel savings after the calibration period, a compatibility issue, or any other reason. The guarantee is no-questions-asked but providing context helps the process move smoothly.
Receive Return Instructions
Customer support will provide you with the return address and any required packaging instructions. Package the device securely and ship it back using a trackable method to ensure confirmation of receipt.
Receive Your Full Refund
Once the returned device is received, your refund is processed back to your original payment method. Processing times vary by payment provider but typically complete within 5 to 10 business days.
What the Guarantee Covers
Guarantee Terms Summary
- Full refund of the purchase price for any reason
- 30-day window from the date you receive the device
- Applies to all purchases made through the official website
- Covers unsatisfactory fuel savings after the calibration period
- Covers compatibility issues with your specific vehicle
- No requirement to prove a certain level of fuel testing
- Applies to single-unit and multi-unit bundle purchases
Does the Guarantee Apply to Third-Party Purchases?
The official 30-day money-back guarantee only applies to purchases made through the official SynGas checkout website. If you purchase SynGas through Amazon, eBay, or any other third-party marketplace, the official guarantee does not apply to your order. This is one of the most important reasons to buy SynGas only through the official source.
Third-party marketplace sellers may or may not offer their own return policies, but these are not the same as the manufacturer's guarantee and may not cover the same scenarios. For full guarantee protection, always purchase directly through the official checkout. Our where to buy SynGas guide covers this in more detail.
Does the Guarantee Give You Enough Time to Test SynGas?
Yes, and this is an important point. The 30-day guarantee starts from the date you receive the device, not from when you order it. A typical US delivery takes 5 to 7 business days, so you have approximately 23 to 25 days of actual testing time within the guarantee window after your device arrives.
SynGas completes its primary calibration within 150 to 200 miles, which for most daily drivers takes 5 to 10 days. That means you have approximately two to three full weeks of post-calibration testing within the guarantee period. This is more than enough time to evaluate your fuel consumption across three or more full tanks, which is the minimum data set that gives a reliable picture of the device's impact on your specific vehicle. According to consumer protection guidance from the US Federal Trade Commission, products with clearly documented return policies represent a lower consumer risk than those without them. SynGas's published 30-day policy meets this standard. See also the full SynGas customer reviews to understand what typical results look like before your own testing period.