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Old 06-21-2009, 01:04 PM   #11 (permalink)
Deezler
Master EcoModder
 
Join Date: Apr 2008
Location: Michigan
Posts: 261

Bio Deezler (sold) - '03 Volkswagen Jetta GLS TDI
90 day: 50.78 mpg (US)

The Beast. - '03 GMC Sierra 2500HD SLT
90 day: 12.86 mpg (US)
Thanks: 0
Thanked 36 Times in 22 Posts
Quote:
Originally Posted by tasdrouille View Post
What you are seeing on the sides of the rear glass are C pillar vortices IMHO.
Ah ha. Meaning that the flow is truly less attached than it appears? Either way I suppose there isn't much you could do about it other than put some VGs on the side of the vehicle. Wonder if my roof VGs on the edges can sort of "over ride" the C pillar vortices.

Tas, how did you get the green machine up to 55 mpg? Driving style? Quite the jump from the 44 mpg I recall you having earlier.

Thanks metro, and yes, that is the real question here. Probably will never know. I think I need to just clean up the underside of my vehicle a bit more, build some rear wheel skirts, and focus on driving style. Then be content with my results. hopefully.

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