View Single Post
Old 03-07-2013, 04:04 PM   #2 (permalink)
Aero Wannabe
COcyclist's Avatar
Join Date: Dec 2007
Location: NW Colo
Posts: 696

TDi - '04 VW Golf
90 day: 55.54 mpg (US)
Thanks: 626
Thanked 196 Times in 154 Posts
Grill blocks help mpg intwo ways; better aerodynamics and quicker warm-up times. If you pulse and glide with the engine off, you can keep engine heat in with a blocked grill. IMHO an adjustable grill block behind the hexagons would benefit you much more than a slightly more aerodynamic but fixed grill block in front of the grill.
60 mpg hwy highest, 50+mpg lifetime
TDi=fast frugal fun

Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.

Last edited by COcyclist; 03-11-2013 at 10:06 AM..
  Reply With Quote