Just thought I would share this new method for saving fuel using old
technology for boats that my dad recently showed at the Shootout in
Missouri.

http://www.marineoverdrive.com


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The fuel economy, or fuel savings was evaluated at gallons per hour at
speeds from 22 mph to 55 mph in direct drive versus overdrive. I.E.,
Gallons per hour usage at 22 mph in direct drive versus gallons per
hour usage at 22 mph in overdrive. Gallons per hour usage at 35 mph in
direct drive versus gallons per hour usage at 35 mph in overdrive, and
so on. The overall fuel savings at 4,200 ft. elevation was 15.7%, the
estimated fuel savings at sea level would be in the 20 to 21% range.
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Thanks!