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Old 03-21-2012, 10:07 PM   #2 (permalink)
Cyborg ECU
California98Civic's Avatar
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 5,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 59.78 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
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Originally Posted by anotherls View Post
I have been lurking for about 2 months now doing different things to my car to help out. I drive about 110 miles a day round trip for work so every last drop of fuel counts. I am getting around 40mpgs right now with just changing my driving habits and putting some more air in the tires. The car is an automatic so that does not help. The latest thing I have done is removed the power steering pump belt to see if it would be beneficial to remove it altogether. Also I bought another upper gril off ebay, and plan on fiberglassing it smooth to reduce drag by a little. I am also planning on some underbelly pans especially in the rear, as the rear bumper is like a parachute on this thing. Any advice would be much appreciated.
Welcome! A "chin spoiler" (aka "air dam") can be made with black lawn edging quite easily. And an Ultra Gauge is a good addition to the facotry MPG gauge. See if your model can be flat towed (call dealer) because if it can then you will have the option of cutting the engine and coasting in neutral occasionally, when the road is clear and its safe! Racking up miles while burning no fuel really helps the averages. I run my tire pressure much higher than you. It makes for a rougher ride but it reduces rolling resistance significantly.

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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