Poor Gas Mileage

http://Toyota.autoboardz.com/poor-gas-mileage-ftopict248958.html (poor gas mileage)
I own a 2005 honda civic, 80000km and the mileage is poor, car runs fine except for the lights keep diming off and on when ideling but not when driving. Does anyone know what to look for to improve my gas mileage?
« "boxinganimal" wrote A list of things to check, organized roughly by cost: »

http://Toyota.autoboardz.com/Poor-Gas-Mileage-ftopict234266.html (Poor Gas Mileage Question)
I have a 07 accord ex-l v6. now I know that the what they say on the sticker that the car will average it usually off but my car is averaging about 12-15 mpg normal driving. that's not even gettin on the throttle and using vtec. I went to the dealer and naturally the service writer said that that ..

http://Toyota.autoboardz.com/07-Caravan-poor-gas-mileage-ftopict232681.html ('07 Caravan - very poor gas mileage)
This summer I bought a new 2007 Caravan base model with Flexfuel. For the first tank of gas, I got about 18mpg in town, a little below stated mpg. Then the mileage kept going down. In cold winter now, it only gets 14mpg. I exactly followed the advice for break-in, and get services on time. This..
« Bummer. Have you talked to your dealer about it? For what? -- "Ubuntu" -- an African word, meaning "Slackware is too hard for me". »
« Could have something to do with the FlexFuel capability, which your '94 Caravan did not have. Fuel blends do not have the energy density (BTUs) of gasoline, which causes a drop in MPG when they ar.. »

http://Toyota.autoboardz.com/Help-rough-idle-poor-gas-mileage-ftopict238112.html (Help w/ rough idle and poor gas mileage)
Hello folks I am experiencing rough idle when the engine is on for 20 minutes or more, I am also noticing a really poor gas milleage.This problem have been increasing with time. There are no computer error codes to give me a clue of what the problem could be, anyone have any ideas? I got this ..
« Do the thermostat WITH A 192 and come back then. »
« On 2004-11-18 19:59:24 -0500, Backyard Mechanic said: What's a 192? »
« It's a thermostat that opens at 192 degrees Fahrenheit to allow water from the block to flow through the radiator. -- John ThunderSnake #59 If you Reply, be sure and remove the " (DELETE_THIS) " f.. »
« John opined Sorry...it's the designed temp for the engine I ONLY said the number to state that there is NO advantage to going with a lower number and it is potentailly harmful.. and on that note.. »

http://Toyota.autoboardz.com/Oxygenated-Fuels-poor-gas-mileage-ftopict245613.html (Oxygenated Fuels - poor gas mileage)
I recently took a trip from Western Washington to Eastern Washington State in my CRX. After filling up in Western WA (which has oxygenated gas), I got about 37 mpg. I filled up again in Eastern WA (which does not have the oxygenated gas) and I estimate I'm getting about 45 mpg (and significantly..
« question: is the trip to-and-fro level? »
« Western WA as a rule does not have only oxygenated gas, only certain stations. »
« Most likely it's called WIND! I drove my neices 84 Civic HB from W. Orygun to N. Idaho along the Columbia Gorge. Normally he car would get about 33 MPG highway, based on a 360 mile (each way) round .. »
« Use Chevron or Texaco gas. They aren't oxygenated, AFAIK. feroce, in Olympia »

http://Toyota.autoboardz.com/2004-Dodge-Neon-SXT-poor-gas-mileage-ftopict226225.html (2004 Dodge Neon SXT - poor gas mileage)
I have a new (< 3000miles) 2004 Dodge Neon SXT (auto trans.). The sticker said the car should be getting 25-31 MPG. Unfortunately, I have yet to get anything above 22-23 regardless of my driving (city/highway/etc). Being a new vehicle, I don't expect it to be a problem with spark plugs, O2 sensors..
« Unless its hard for you to get to a dealer, I would take it in, this is part of what you're paying for when you buy the car. Understandibly, with a new car, you wouldn't expect wear-out problems w.. »
« No, the sticker said the car rated 25 mpg on the EPA's simulated city-driving cycle, and 31 mpg on the EPA's simulated highway-driving cycle. This does NOT mean the car "should get" that mileage! Th.. »
« with less than 3000m on it, would you expect this motor to be fully broken in yet? MPG's should start to increase as the rings become fully seated. How exactly are you measuring the MPG? Mike »

http://Toyota.autoboardz.com/poor-gas-mileage-ftopict179164.html (poor gas mileage)
I have a 2001 isuzu rodeo v6, 4x4 auto with 60,000 miles on it. and recently my gas mileage has gone from 18-20, to 13! I have already scaned the ecm, returning no codes. changed spark plugs, and air filter. I don't really know what to do next. the truck runs great, makeing great power, probab..
« Around town with AC on 16 city and 18-20 highway is typical. What about wires, cap, rotor etc? Another possibility is a bad O2 sensor causing it to run rich. If it were that bad it would trip a.. »
« This Rodeo has the 3.2L engine, right? You may want to check the catalytic converters - they have a nasty habit of breaking up and clogging the flow. Any reputable exhaust shop should be able to t.. »
« The 3.2L is also known to consume a lot of oil. Both engines gain HP by using short skirt pistons. More power but oil consumption is a trade off. »
« Indeed it could be a bad O2 sensor as that will only set the check engine light when it completely fails. Could also be dirty fuel injectors. Either one can cause poor mileage while not affectin.. »

http://Toyota.autoboardz.com/2000-civic-poor-gas-mileage-ftopict204553.html (2000 civic poor gas mileage)
I have a 2000 Civic Ex 70k that is getting approx. 24 MPG for about 60 highway/ 40 city driving. I recently bought this car and am extremely surprised by the economy. I drive it gently, tires are correct pressure, plugs I believe, were changed around 40k at the dealer, recent oil change and air fi..
« ================================= We don't know it you're talking Imperial or US MPG, and is it 70,000 Kilometers or miles? I might suggest you have winter gas where you are, but we don't know whe.. »
« In USA - 70k miles »
« NY, USA - 70k miles »
« there's a ton of reasons why. need to be more specific. things to look into include brakes binding, dying oxygen sensor, bad plug leads, wrong oil grade, ignition timing, leaky injectors, etc. .. »

http://Toyota.autoboardz.com/2000-Altima-GXE-poor-gas-mileage-ftopict188266.html (2000 Altima GXE poor gas mileage)
I bought this used at 34000 miles. I now have 49000 miles and it only gets 15 miles per gallon in the city and not much better on the highway. It runs great, idles great, no smoke etc. I just replaced the tires 3 months ago and this has not helped. I ran my finger around the inner portion of th..
« I have the similar problem with my 97'. I had replaced both O2 sensors. It goes up 22 mpg. Then someone suggested to replace "coolant temperature sensor" the one with 2 wires which is for the comput.. »
« Thank you so much. »

http://Toyota.autoboardz.com/1990-Celica-GTS-Liftback-Poor-Gas-Mileage-ftopict192365.html (1990 Celica GTS Liftback Poor Gas Mileage)
I used to get about 300 miles to a tank of gas - until recently (about 6wks ago)...now I'm getting about 150 miles to a tank. Has anyone else experienced this with their Celica - is this normal for the age/miles on the car (240K)? I have correct tire pressure, don't use the A/C, and don't let th..
« That's a rather significant difference in MPG. First easy thing you can do is check/change the air filter. Next thing is fill up the tank again and check your mileage all over. Perhaps you made a.. »
« A lot of things can cause a significant decrease in fuel economy. How does the car run? How long has it been since the car was serviced? When was the last time the spark plugs were changed? Doe.. »

http://Toyota.autoboardz.com/POOR-GAS-MILEAGE-NICE-RIDE-ftopict178366.html (POOR GAS MILEAGE-VS-NICE RIDE)
My 2005 Ascender, 5pax, 4.2 6cyl get's real poor gas mileage, like everyone else's, but I do enjoy the ride. I have buds that bought Pathfinders and 4Runners and paid lot's more than I did, and like my Ascender, they too get poor gas mileage. Theirs do not ride any smoother than the Ascender, i..