Quote:
Originally Posted by SentraSE-R
You meant windows open and AC off v. windows closed and AC on? Barring a typing error, it has to be testing variability. There is no logical way you can get better fuel economy with windows down v. windows up at 72 mph in your car, all other conditions being equal.
|
Yes I messed up again. It should have read:
30 MPG with windows open, A/C off and
25 MPG with windows closed and A/C
on.
I just did another test, I realised that I have been using the fan on high which is too cold at 70 MPH but fine at 60. I turned the fan down and got 27.5 with the A/C on even though I was slowed down by slow drivers.
lbar,
There are vents in the back of the trunk that releases excess air pressure. I sealed the rear deck with rubber to make the sound system better. I may have made windows open driving more efficient. Never less it is always better to drive with the windows closed verses open. Especially at race speeds.