I'm skeptical as well but figured I'd run it by the forum to see what everyone thinks. I'm open to any and all opinions. On another note, the scooter I purchased is about halfway through a full tank and so far I'm at estimated 90-100mpg. Drive it to work as much as weather allows. Also, increased psi on tires on my '05 Toyota 4Runner from 36 to 45 last week and already see about 3-4mpg increase on my factory Toyota fuel gauge (from 20 mpg to 24 mpg) halfway through this last fill-up.
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