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A 100% Customer Satisfaction Guarantee on our More Miles Per Gallon (MMPG) System!
Only applicable to our US and Canadian customers on systems installed by MMPG certified technicians
Performance Warranty:
If installed by a MMPG factory certified technician we guarantee that the More Miles Per Gallon System will provide at least a 50% increase in highway gas mileage, or we'll remove it for free and refund what you paid for your system as well as the installation charges.
Components Warranty:
The MMPG System carries a 1 year parts warranty against manufacturer defects.
JeffOtto.com LTD would love to hear from you about your experience with our new MMPG System. All testimonials will receive a $50.00 coupon toward their next purchase of any product offered through JeffOtto.com LTD.
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