2004 Honda Civic EX Sedan in silver, nicknamed Silver Aero, purchased with 152.7K miles.
A lot of my driving is pizza delivery, which is logged on here on a separate fuel log. Been averaging ~38 MPG during pizza delivery, with almost zero hypermiling.
Winter reduces fuel economy by approximately 10%.
Stock drag: .32
Estimated ecomodded drag: .29
Current w/ no hypermiling
Current w/ mild hypermiling:
Current w/ max hypermiling
Daytime driving speed: 25-50 MPH, depending on traffic. More traffic requires more 50-55 MPH driving.
Nighttime driving speed, no traffic: 15-40 MPH. With traffic my speed is the same as during daytime.
Estimated current weight from weight reduction: 2535lbs
Front smooth wheel covers (caused brake heating during longer periods of driving. Unnoticeable unless coasting or monitoring fuel economy, but can cut MPG by 50% until cooled off. Negligible FE loss from removal)
Coroplast rear wheel spats
* = My personal recommendation is to not go over 60 PSI in 44 PSI rated tires.
Other planned ecomods:
LED brake lights ($19)
LED interior lights ($7)
LED reverse lights ($16)
LED headlights ($37)
Attempt at homemade VGs to keep airflow attached down the rear.
Aero/low profile windshield wipers (if/when current ones need replacing) -$18
Ecomods under consideration:
Rebuild tail extension out of coroplast
Coroplast front wheel partial skirts
Redo mirror boattails
Windshield wiper deflector
Weather stripping to seal gaps around front hood and rear trunk
Further weight reduction (theoretically +1 mpg per 100 lbs deleted)
Full AC delete (-40 lbs)
Radio delete (-20 lbs)
Speaker delete (-8lbs)
Total: -68lbs, theoretically +0.68 MPG.
Engine pay underbody paneling from same gen Civic Hybrid or a belly pan