Thread: 10% Gas saving with an undertray...anyone try this?
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Old 08-26-2008, 01:00 AM   #3
4x4 blazerguy
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Re: 10% Gas saving with an undertray...anyone try this?
Yea, lots of people trying to sell gas saving devices of one kind or another. Are the manufactures so stupid that a $10 under car cover would save 10% on fuel & leave it off.
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