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Old 01-14-2010, 07:06 PM   #9 (permalink)
rmay635703
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Quote:
Originally Posted by Dean in Milwaukee View Post
Getting 40% above the city number may be possible, (29.4 mpg), with some more extreme measures, but its not going to happen on hwy trips as it took optimal conditions ( steady 50 mph cruise on level ground with no a/c or wind) to get the 35 mpg figure. A more normal hwy economy number is 30-31 mpg.
Dean in Milwaukee
Not being familiar with a 5 or Mazda, I will provide a comparison My Automatic 98 Buick Lesabre V6 (3.8ltr) tops out at a little over 38mpg driving slowly on the highway (actually allowing my speed to go up and down fairly significantly)

I believe that 50mph is NOT necessarily ideal, if you have a scanguage you might find letting your speed go higher and lower may yield far in excess of your 35mpg number holding a steady 50mph.

Good Luck
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