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Old 12-07-2013, 09:08 AM   #2 (permalink)
Cyborg ECU
California98Civic's Avatar
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,373
Thanked 2,172 Times in 1,469 Posts
Is it a manual transmission? If so, I have nearly the same car, or had nearly the same car before mods. The usual simple stuff true for most cars will help you: pump up the tires. Mine are at 55-60 psi most of the time. Get a ScanGuage or UltraGauge (it will pay for itself through improved fuel economy) and then learn to drive at 75% - 80% load, shifting at 2000 rpm, give or take 100. An air dam and grill blocks are easy and cheap to make and have helped me a lot. My best engine mods were to get rid of power steering. It was only an option on this lightweight car. You don't really need it. I have done many other mods, all detailed on my car's page, often with links, meant to help new people as well as just document my process a little.


Start a fuel log so you can track progress over time.
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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