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Old 06-29-2016, 02:51 AM   #6 (permalink)
California98Civic
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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)
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You are not going to get a whole lot more out of that Integra. The auto trans is a major reason (as is its gearing, as Ecky already stated). Maybe you'll be able to put some distance between it and the Buick in terms of FE once the neglected work on the Integra gets done. Further improvements would be possible in the Integra because you can use its OBD2 port for a ScanGauge or UltraGauge to monitor your driving with greater precision than I think an MPGuino can offer.

But none of that matters if the Integra has been so neglected that it costs you real money in repairs in a short while. Given what you describe in oil, spark plugs, and cables, I would wonder if the AT fluid has ever been changed.

And that Park Avenue is so 80s!



Go with the Buick.
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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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