Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-08-2010, 09:51 PM   #1 (permalink)
EcoModding Lurker
 
Join Date: Feb 2010
Location: WA
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
1994 honda civic ex 5 spd gas mileage

I am currently getting anywhere from 26-33 mpg. I have tried all different fuels/grades from different stations. Before I purchased the car, a new distributor was installed. I have installed spark plugs and a new fuel filter and am lucky to get 280-320 miles to the tank. I was thinking about swapping the engine out for a VX engine with vtec-e for the gas mileage but am not sure at this point.Does anyone have suggestions for me?

Oil is Mobil one fully syn. 5w30 changed every 4-5k, stock ECU (p28), 2.25 inch exhaust and stock air box

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-08-2010, 10:06 PM   #2 (permalink)
Master EcoModder
 
Ryland's Avatar
 
Join Date: Jan 2008
Location: Western Wisconsin
Posts: 3,904

honda cb125 - '74 Honda CB 125 S1
90 day: 79.71 mpg (US)

green wedge - '81 Commuter Vehicles Inc. Commuti-Car

Blue VX - '93 Honda Civic VX
Thanks: 867
Thanked 433 Times in 353 Posts
try a stock exhaust, 2.25 is almost twice the volume of the stock exhaust.
also check your timing.
  Reply With Quote
Old 02-08-2010, 10:23 PM   #3 (permalink)
EcoModding Lurker
 
Join Date: Jan 2010
Location: USA
Posts: 33

QG - '02 Nissan Sentra GXE
Thanks: 1
Thanked 2 Times in 2 Posts
X2^ That's too big of an exhaust pipe for a stock engine. Unless you plan on swapping out the intake and/or header for a less restrictive, aftermarket type, I'd downsize to 2" tops or go back to stock.

As for the engine swap idea, what condition is the current engine in? If you're willing to go through with it, I've seen those VX engines going for $400- $500 in my area.
  Reply With Quote
The Following User Says Thank You to El Duende For This Useful Post:
Domman56 (02-20-2010)
Old 02-08-2010, 10:24 PM   #4 (permalink)
EcoModding Apprentice
 
tim3058's Avatar
 
Join Date: Sep 2009
Location: Northeast
Posts: 147

Silver Bullet - '86 Chevy Camaro Z28
90 day: 19.74 mpg (US)

New Blue - '96 Chevrolet Camaro Z28
90 day: 20.46 mpg (US)

Diesel - '96 Chevrolet Tahoe LS
Last 3: 13.56 mpg (US)

Tahoe #2 - '95 Chevrolet Tahoe LS
90 day: 13.05 mpg (US)

SuperDuty - '08 Ford F-350 dually Lariat
90 day: 9.34 mpg (US)

Fundai - '09 Hyundai Elantra
90 day: 26.45 mpg (US)

HRV - '17 Honda HRV LX
90 day: 31.39 mpg (US)
Thanks: 7
Thanked 18 Times in 12 Posts
The EX model came with a Vtec, just not the Vtec-e right? I checked autos.msn.com and they list 29/35mpg for the 125hp EX 5spd. What's your usual speed/driving style?
__________________


  Reply With Quote
Old 02-08-2010, 10:35 PM   #5 (permalink)
EcoModding Lurker
 
Join Date: Jan 2010
Location: Wi.
Posts: 75
Thanks: 0
Thanked 4 Times in 4 Posts
Hey 92hondacivic, make sure your t-stat is good. A cooler running efi engine uses more gas.
  Reply With Quote
Old 02-08-2010, 10:38 PM   #6 (permalink)
EcoModding Lurker
 
Join Date: Feb 2010
Location: WA
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by tim3058 View Post
The EX model came with a Vtec, just not the Vtec-e right? I checked autos.msn.com and they list 29/35mpg for the 125hp EX 5spd. What's your usual speed/driving style?


I dont drive it like my CRX. I dont "step on it" very often if any. I shift about 2500-3000, but it doesnt seem to help with the mileage.
I drive mostly on the highway (60-70mph) and over the last 5000 miles my average was 26-33. Havnt really changed driving style.
  Reply With Quote
Old 02-09-2010, 01:12 PM   #7 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,720

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 53.56 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 66.29 mpg (US)
Thanks: 3,452
Thanked 6,271 Times in 3,243 Posts
Driving style is the biggest single factor.

"When to shift" seems to be one of the main things that people who are new to efficient driving worry about, when they should instead be focusing on conserving momentum, reading traffic, and minimizing the use of the brakes.

Have you reviewed the list of 100+ driving tips to see what other techniques might apply to your situation?
__________________
Latest mods: 3-cylinder Mitsubishi Mirage. EcoMods now in progress...
Ecodriving test:
Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 02-09-2010, 08:01 PM   #8 (permalink)
EcoModding Lurker
 
Join Date: Jun 2008
Location: New Cumberland,PA
Posts: 59
Thanks: 2
Thanked 3 Times in 3 Posts
Send a message via AIM to pumafeet10
yeah i would definitely slow down a lot and shift at no more then 2000rpms, I have a 2000 civic cx, no vtec and atleast 30 less horsepower and drive around just fine. also air up your tires if they aren't already at max sidewall psi
  Reply With Quote
Old 02-09-2010, 09:19 PM   #9 (permalink)
Master EcoModder
 
Join Date: Nov 2009
Location: Leadville, CO
Posts: 509

Maroon Ballon - '98 Chrysler Town & Country LXI
90 day: 26.42 mpg (US)

MaEsTRO - '95 Geo Metro 5spd hatch, 3 cyl
Thanks: 47
Thanked 54 Times in 38 Posts
I have a 95 EX with an A/T, and I get better mileage than that. It's the kind of car that is fun to push the accelerator on, but you can get much better mileage if you restrain yourself. I've gotten close to 50 mpg with no mods other than restraint.
  Reply With Quote
Old 02-16-2010, 09:00 PM   #10 (permalink)
EcoModding Lurker
 
Join Date: Feb 2010
Location: WA
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
just replaced the oxygen sensor and noticed a little difference in the first tank that was ran through, but it fell on its face again after that. any suggestions?

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
EcoModding for Beginners: Getting great gas mileage. SVOboy EcoModding Central 55 08-20-2012 11:34 PM
98 Honda civic - automatic - what to expect fuel mileage EcomilerChristopher General Efficiency Discussion 8 12-17-2009 06:58 AM
94 honda civic to EV, AC Motors? sirus20x6 Fossil Fuel Free 17 12-04-2009 10:55 PM
In a world where Jeeps get horrible gas mileage.... EcoJeeper Introductions 16 03-26-2009 12:09 PM
2004 Honda Civic Sandy Introductions 4 01-22-2008 11:57 AM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com