5-Year
The ECO Fuel Systems has a 5-Year Limited Warranty.

90 Day Return Policy
Guaranteed to work for you, or return it within 90 days for a full refund of your purchase price.

Returns
Please contact us before you have it uninstalled. There are some common situations that contribute to not getting expected results.

Watch Out For These
1) Different fuel sources. Gasoline is formulated, and varies by distributor and location. If you measure gasoline economy on one long distance trip, you might not get expected results, because you are comparing different fuel sources/formulations.

2) Use the same pump for 3 fill-ups before you install, and get some good numbers. If you've logged your fuel for a while, you will have this info.

3) Don't trust the computer. Trust the actual amount you've pumped (and paid for). The computer will eventually show the correct numbers. Use the same pump if you can.

4) Three tanks. We find progressive improvement, and three tanks gives you a better idea than one.

If you are still not happy, send it back to us within 90 days for a full refund of your purchase price. Please contact us for an RMA.

Installation
When you order from us, you must certify that you will have it installed by a trained mechanic. Any mechanic who does engine work can install it in just a few minutes. It does not involve opening up your engine, and it does not affect your engine warranty.