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Old 07-29-2008, 01:12 AM   #7 (permalink)
cfg83
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Join Date: Dec 2007
Location: Southern California
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1999 Saturn SW2 - '99 Saturn SW2 Wagon
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bbjsw10 -

Quote:
Originally Posted by bbjsw10 View Post
I just installed a vacuum gauge about a week ago, and while driving at 55 you can see a noticeable effect of drafting, from as far away as 150ft. My vacuum gauge would show higher vacuum as soon as I came into the draft, sometimes as much as 8 in.hg. The more cars ahead of me the farther back I could be as well. So you don't necessarily have to be close to draft.
Oooooh, that sounds like MPG radar!

CarloSW2
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