Help with another (new) owner of Civic - 8th Generation Honda Civic Forum
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Old 06-15-2019, 02:23 AM   #1 (permalink)
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Join Date: Jun 2019
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mias07civic has their car in neutral right now
iTrader: 0 reviews
Help with another (new) owner of Civic

First post here. I can't tell you how much I wish I had registered before and participated her before!

I hope this is the right place to put this. My average gas milleage is 265 for a full tank. I do this maintenance so far

1. Changed all of my tires to Michellin Defenders a month ago
2. Changed spark plugs myself to OEM brand
3. Changing my own oil to Mobil1 from Walmart myself.
4. I drive 70 HWY/30 roads.
5. tires are 100% to spec with nitrogen (bleh)
6. I get gas from Costco.

I use to get 330 miles to the tank and now it's barely 260ish. Any ideas what could be happening?


Please forgive me if I am breaking any rules or acting like a newbie. Thank you for accepting me here!

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Old 06-17-2019, 12:40 PM   #2 (permalink)
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Posts: 37
K20marco has their car in neutral right now
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Maybe a o2 sensor not reading properly?

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Old 07-14-2019, 10:04 AM   #3 (permalink)
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cal9000 has their car in neutral right now
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do you have any aftermarket modifications? especially anything to do with intake or exhaust
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