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wagon, I have something similar to the center section of post #2 on my car in the winter. I keep the upper grill blocked year round and don't really realize any difference in mpg with or without the nose. It does seem to function like a hard bra to keep my upper grill from being sandblasted to bits by winter debris. If your upper grill is blocked, I don't see what it would hurt. Somewhere I have seen a Hucho?? drawing of drag coefficients of several nose shapes and lower seems better up to a point.
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60 mpg hwy highest, 50+mpg lifetime
TDi=fast frugal fun 
https://ecomodder.com/forum/showthre...tml#post621801
Quote:
Originally Posted by freebeard
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.
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