Hi,

I like to start with a baseline mileage by plotting an miles per hour vs MPG chart. Cruise control is perfect for this since it holds the speed fairly constant and you want to run for at least 1-2 hours and plot values that are about 5 miles per hour from each other:

This establishes a baseline so in the future, you will have a reference to compare.

I haven't seen anyone plot miles per hour vs MPG for the HiHY and if you have a return trip, I would recommend using that opportunity to do some data gathering. Later, you can start comparing manual speed management versus cruise control and have empirical data to know whether it was successful.

GOOD LUCK!
Bob Wilson

Operation Iraqi Oil Freedom:

Automatic, stock, project car.

My other 1500 cc car:

Automatic, stock, backup car.
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