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Old 12-25-2022, 12:17 AM   #9 (permalink)
EcoCivic
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Join Date: Jul 2017
Location: Memphis, Tn
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Nice find! These 7th gen Civics can get surprisingly good MPG. I have an 05 sedan with the 1.7 VTEC and base D17A1 5 speed and I regularly get 45-47 MPG on my daily commute with a best tank of 49.2 MPG. That's with some mods (mostly performance mods actually), but nothing extreme.

I also have a K24A2 swapped sleeper 04 sedan, but at the moment it's currently getting only about 40-42 MPG because it's not nearly finished yet.

If I may make a few suggestions for simple and cheap ways to improve your MPG, you may want to get a block heater, block the upper grill for the winter, adjust the valve lash, and change the spark plugs and upstream o2 sensor if they are original. You'll likely see some decent gains with that stuff.

You can also convert the power steering to the electric system from the Civic Hybrid or EP3 Si or just delete the power steering to free up a few HP, get a little more MPG, and free up a lot of space under the hood. Converting to EPS was fairly easy and cheap for me, but I don't find these cars that hard to steer without power steering either.
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