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Old 08-09-2011, 08:54 AM   #12 (permalink)
California98Civic
Cyborg ECU
 
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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)
Thanks: 2,373
Thanked 2,174 Times in 1,470 Posts
I have to agree with Arragonis on the exhaust system stuff, given the hefty price tag ($600) you paid for that gain. But still, you need to love your car too... a new paint job does nothing for FE but it does help you love the car (hopefully) and therefore keep it, saving the dump space.

For the moon disc caps... I just learned about these from Quasimoto in a PM about his:

http://www.rockymountainwheel.com/in...ducts_id=27249
Racing Disc Hubcaps (Pop-On). Scion Hubcaps, Vintage, Kustom Wheel Covers

Impressive numbers you have out of this car... do you keep a fuel log on this site?

Quote:
Originally Posted by cistercian View Post
Nearly six years ago I became fed up with the oil companies and so I decided to buy a lot less of their products.I purchased a 1995 Honda Civic EX coupe that was a salvage vehicle for 2800 dollars with 134,000 miles on it.When I got it, it only got 34mpg Highway.
I increased the tire pressure to the maximum cold pressure.I switched to Mobil 1 5w30 and the mobile 1 filter.I installed new plug wires,rotor and cap.
I installed NGK Iridium standard heat range plugs.I replaced the oil in the transmission with synthetic Mobile 1.
Then I drove it.Over the first year the hwy mpg slowly floated above 40mpg.
I then added a Tanabe Super Racing Medallion exhaust system.That instantly netted 2mpg hwy....and considerably better high RPM HP.The mileage has stopped increasing and has now stabilized at 40 to 46mpg combined.I have gotten over 50mpg (53.4mpg absolute record)5 times....pure hwy,59mph.
The car has higher than stock compression...I estimate roughly 10 to 1.It is supposed to be 9.2 to one.I am not certain, which is a shame.

I have toyed with the idea of lighter wheels....but the lighter ones are not aerodynamic enough.What would help some is a set of moon wheel covers...but I can't find any.
My last tank was 45.983mpg.And it was a mix with plenty of city!
Current odometer is 266xxx!

I love my car!
__________________
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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