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capnbass91 · 05-25-2011, 11:13 PM

I made a partial grill block out of coroplast, and have seen a slight improvement of mpg. My ultragauge says I went about 730 miles and my avg mpg was 17.5. Since I've had my grill block my avg mpg stays in the 17.9-18.1 range. And on the freeway before the block I barely ever saw over 30 mpg going 65. Now I consistently see 30-32 mpg going 65

I barely ever go on the freeway, so the averages are like 90-95% city driving.
I could only find white coroplast, so it kinda sticks out, I plan on spraypainting it black to look better. It's held on with thick zip-ties that go through 2 holes that are perfectly placed behind the grill, Chrysler actually made something conveniently located!

I'll post some pics later.

05-25-2011, 11:13 PM	#1 (permalink)
capnbass91 EcoModding Apprentice Join Date: Apr 2011 Location: Orange Country, CA Posts: 102 Fiesta - '12 Ford Fiesta SE 90 day: 31.45 mpg (US) Thanks: 36 Thanked 3 Times in 3 Posts	Partial Grill Block I made a partial grill block out of coroplast, and have seen a slight improvement of mpg. My ultragauge says I went about 730 miles and my avg mpg was 17.5. Since I've had my grill block my avg mpg stays in the 17.9-18.1 range. And on the freeway before the block I barely ever saw over 30 mpg going 65. Now I consistently see 30-32 mpg going 65 I barely ever go on the freeway, so the averages are like 90-95% city driving. I could only find white coroplast, so it kinda sticks out, I plan on spraypainting it black to look better. It's held on with thick zip-ties that go through 2 holes that are perfectly placed behind the grill, Chrysler actually made something conveniently located! I'll post some pics later.