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Old 03-31-2008, 07:33 PM   #2 (permalink)
trebuchet03
MechE
 
Join Date: Dec 2007
Location: Orlando
Posts: 1,148

The Wagen - '00 Jetta GLS
90 day: 32.72 mpg (US)
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Quote:
Originally Posted by bhazard View Post
The way I think about it is, you can accelerate slowly and have to be in the throttle for a longer period of time, or you can accelerate quicker and get to cruising speed much sooner.
Careful - correct conclusion for the wrong reasons.... In the miles per gallon equation, there is no "time" variable. mpg is independent of time. If your engine efficiency stays the same all the time - it would take the same amount of fuel regardless of how fast you accelerate... But, efficiency changes with load

As for your question - I'll let someone else answer for a turbo My explanation won't be very eloquent
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