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Old 01-09-2011, 09:13 AM   #1 (permalink)
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hi- new member with 2011 civic ex

hi-
just got my 2011 honda civic ex and want to do some eco-mods that won't void my warranties

Any pointers and tips are welcome

thanks and look forward to more good info

Joe

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Old 01-09-2011, 12:26 PM   #2 (permalink)
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Welcome!
here is a good list of mods to look at:
Car MPG Efficiency Modifications Main - EcoModder

Good ones to start with, tire pressure, grill block, belly pan.
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Old 01-13-2011, 05:48 PM   #3 (permalink)
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ok aired up tires to 44 psi - rolling resistance lowered

also, got darkest legal tint for first ecomod
This will help with FE in summer as it will cut down on amount of AC useage

next, remove mud guards - aero mod

future:

grill blocks for the lower section - aero mod

suction cup Kamm back - aero mod

rear belly pan attached to hitch - aero mod
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Old 01-13-2011, 06:00 PM   #4 (permalink)
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jmdesignz2 -

Welcome to EM! Is it a sedan or a coupe?

CarloSW2
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Old 01-20-2011, 08:53 PM   #5 (permalink)
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hi-
it is a sedan with auto transmission

MPG has been under epa even with very conservative driving

However, for highway miles I do my share of passing...so that might be a reason

Best MPG is HWY 34.7 after 44psi tires.
prior to that it was 34 but just barely...

Best city is 32, worst was 27.8mpg

I just completed my coroplast grill blocks held on with zip ties.

I will have a few long trips where I can test this out later this week.

Trying to crack 40 MPG...but have not had my first oil change yet

I am expecting the mpg to rise as the engine settles in.

BTW - all the gas around here has up to 10% ethanol so I have heard this can hurt mpg as much as 25%?
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Old 01-20-2011, 09:32 PM   #6 (permalink)
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Mileage usually gets better after the engine "break-in" period too.
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Old 01-20-2011, 11:42 PM   #7 (permalink)
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i have a civic hybrid


and i believe the underbody trays fit non-hybrid sedans as well

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