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RockyMtnRay · 08-04-2003, 02:06 PM

My suspicion is that it has more to do with relative angle of the vehicle to the airstream. If without the air springs, the front was noticeably higher than the rear, the bottom of the vehicle would have been acting a bit like having a very large non-aerodynamic board partially turned into the wind. That would have significantly increased the wind resistance and could alone account for a 1 to 2 mpg decrease. Leveling the pickup with the air springs would have returned it to it's factory optimized aerodynamics.

08-04-2003, 02:06 PM	#9
RockyMtnRay TrailManor Master Join Date: Jul 2001 Location: Colorado Springs, CO Posts: 816	Re:2000 Ford Ranger and 3023 My suspicion is that it has more to do with relative angle of the vehicle to the airstream. If without the air springs, the front was noticeably higher than the rear, the bottom of the vehicle would have been acting a bit like having a very large non-aerodynamic board partially turned into the wind. That would have significantly increased the wind resistance and could alone account for a 1 to 2 mpg decrease. Leveling the pickup with the air springs would have returned it to it's factory optimized aerodynamics.