You put hard-earned dollars into NMF. It is extremely rare to hear that NMF has not performed as expected. If this happens with you, please just tell us and we’ll process your refund. We will be thankful for whatever information you can share such as vehicle type and condition, workload, and the oil you use. This information is unrelated to your refund. It is to help us stay abreast of results under various conditions and to consider why in your case the benefits of NMF weren’t apparent.
Your purchase comes with the following guarantees:
(1) NMF reduces wear and heat to your satisfaction or money back
(2) NMF cleans the engine to your satisfaction or money back
(3) If used in fuel, NMF cleans the injectors to your satisfaction or money back
(4) On test ASTM D4172 (click here for overview) NMF improves the wear resistance of whatever oil you use by at least 15% or we’ll pay your laboratory fees.
(5) For a fully-treated semi truck only, NMF improves fuel efficiency 4 percent or your money back.
Let’s say you buy diesel at today’s national average of $5.14 per gallon, your truck now gets 9 MPG, and you drive 3000 miles per week. With only a 4% improvement in fuel efficiency, you save $3420 a year. We guarantee with NMF you save that amount. Most truckers save much more.
To qualify for 4% fuel savings or money back on one 64oz bottle, apply NMF to your semi truck as follows: - Engine: 1 oz per quart of oil - Transmission: 16 oz total - Differentials: 12 oz in each - Power steering: 1 oz total - 5th Wheel: Mix about 1 oz into 5th wheel grease
Compare fuel logs for the 15,000 miles before and after applying NMF. If fuel efficiency didn't improve 4% just email your fuel logs to sales[at]GoNMF.com and we will issue your refund.
This 4% fuel savings guarantee applies only to semi trucks.
If you are psyched about the fuel you saved, we will be grateful for a review on Amazon!
