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Old 08-20-2013, 01:50 AM   #29 (permalink)
EcoModding Lurker
Join Date: Apr 2013
Location: Nj
Posts: 48

wrx - '02 subaru impreza wrx wagon
90 day: 33.81 mpg (US)

Leg - '05 Subaru Legacy 2.5i
Thanks: 2
Thanked 2 Times in 2 Posts
Originally Posted by raylit20 View Post
As I performed several aero mods at the same time, I cannot quantify any fuel economy gains from this particular mod.

I can say that with four wheel covers, dual exterior mirror delete, a large amount of weight reduction, and a full grille block I had attained between 18 and 20mpg city in this 98 4x4 Blazer. This was up 20-30% from the 15mpg city the original owner attained over the course of 220,000 miles.

At present I am driving an 05 Honda Civic Hybrid, and unfortunately for the sake of the thread I no longer have any need for aero-modded wheels.
First aero mods are almost completely insignificant in the city, second given the extent of mods at once wheel covers account for maybe 5% and that would give .05x4 = 0.2mpg therefore a very insignificant gain. An even better gain for a vehicle like a all time 4x4 would be drive shaft and rear axle delete, would have seen 30 or more mpgs.

Again I'm looking for a clear analysis of the two different options, anyone with them already and can afford to chuck out the change to prove the significance.
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