Whats your MPG on a full tank?

[kamozee]

I just did a trip from Toronto to Chicago and I drove 70-80 mph the whole time in 5th gear so the RPM's were about 2800-3000

The gas light went on at 669km (about 418 miles) and I filled the tank with 13.9 gallons

So I got only 30 mpg with 100% city driving. Most likely due to the high revs

 

[midnight407]

wow....something is really wrong....270 miles to a tank

 

[SpiKeZ]

When I first read this thread i thought i had really bad mileage. I was getting 300 or even 280 with a tank. But i realized that an oil change was due and i drive a lot in the city. I seafoamed last week with an oil change and this weekend i went down to atlantic city. I got approximately 260 miles with half of my tank (i factored in the fact that the fuel guage goes over full) so i would say i can get 500 miles per tank give or take 20 with all highway.

I have no idea whether or not the seafoam helped in my mpg or not but ill see during this week and compare it to my 300 per tank.

BTW, i have a 100% stock 02 accord ex

UPDATE: Turns out seafoam didnt do much for me. I was still getting around 300 for a tank (or 18mpg) for my normal driving (about 50/50 local highway). I only had an increase of mpg because I had driven all highway to atlantic city.

After a month or so I decided to try something new to increase my mpg. I ended up getting 370-390 per tank (23 mpg)!

The secret: I drove with a very light foot and tried to keep the rpm at 2000-2200. When accelerating to get on the highway no more than 3200 and when I reached the limit (55mph) I released the pedal slightly so that the car would shift gears and I would be able to cruise at around 2000. I never went over 3500.

Final verdict: My gas mileage was affected greatly by my driving style. I considered myself to be a semi-aggressive driver. While doing my experiment, I felt like a loser always being on the right lane and watching people go around me. However, I ended up getting around 80 miles for free. I'm not so sure if its worth driving so slow and mpg-cautious for 80 miles but it definitely lowers the chance of me speeding. Anyways, I just thought I should update this thread so that those of you out there who can't figure out why you're getting bad gas mileage should consider your driving habits.

 

[rwong410]

It helps a lot when you use cruise control as much as possible. I consistently get 28-29 mpg with 80 highway/20 city while cruising at 75 mph when on highway.

 

[talontsiawd]

UPDATE: Turns out seafoam didnt do much for me. I was still getting around 300 for a tank (or 18mpg) for my normal driving (about 50/50 local highway). I only had an increase of mpg because I had driven all highway to atlantic city.

Yeah, my mileage jumps tremedously when i take a long trip. About 150 miles per tank. Most of my driving is to school which consists of usually 3 trips that is 2 miles. So yeah, my mileage usually sucks during the school year.

 

[quadrinary]

I've got a '99 EXV6.

Usually I get around 350-380 miles per tank (generally 15, 16 gal per fill up). My drive daily is 26 mile each way to work on a heavily congested stretch of highway from Chicago out to the burbs. Stop and go KILLS MPG. I finally did an experiment last fall when going to visit my sister in Omaha. I filled up near my office (10% ethanol is also killer. Stupid IL requirements) and headed out west on I-88/80. On the way there, I stopped about every 200 miles to fill and take a pit-stop, and watched my needle get me about 100 miles/quarter tank. On the way home, I took a greater gamble. Knowing my low-fuel light has never worked, I decided to see if I could get all the way from Omaha to Chicago on a single tank. I filled up at the station right next to my little sister's house, peed, bid her farewell, and headed out.

I got crossed into Iowa nearly instantly, drove around 75mph, kept going. Finally got to the Mississippi River, kept going. By that point I was at about 1/3 of a tank. I kept cruise on to maintain 75mph, and finally got paranoid about 20 miles away from my apartment downtown. At 450 miles, I loaded in 15.5 or 16 gallons; can't remember exactly how much. That breaks down to 28-29mpg, and since the sticker value on the '99 V6 was 28, I was pretty pleased (I think the car had about 115k miles on it then, 127k now).

Anyway, I'm moving to California next month and I'll be hauling a trailer... sadly I know my MPG will be taking a hit... hoping I can just get 20...

Any ideas on what sort of tuning up I should do before heading out? I'm set to run a tank of seafoam next week, did plugs/wires/cap/rotor 20k miles ago. Never did PCV or EGR valves though. Thoughts?

Thanks!

 

[changaroo]

^ tranny cooler if possible esp if you are towing on that v6 auto tranny

 

[beardohio]

2.3 I4 SOHC Vtec I only get 21mpg tops. Not much highway, mostly city but I mean I'm lucky to get 300 to a tank. Only 87k miles on the car, anything I can do?

 

[AFAccord]

2.3 I4 SOHC Vtec I only get 21mpg tops. Not much highway, mostly city but I mean I'm lucky to get 300 to a tank. Only 87k miles on the car, anything I can do?

Sounds like something is wrong with the car. Emissions system most likely (cat, O2 sensors, EGR).

My car regularly gets ~350miles/tank. ~380miles/tank if I drive conservatively, or as low as ~320miles/tank if I beat on the car constantly. All of these numbers are on the low side considering I used to get 400, 430, and 380 respectively when the car was stock and had the F23 transmission.

 

[beardohio]

Sounds like something is wrong with the car. Emissions system most likely (cat, O2 sensors, EGR).

My car regularly gets ~350miles/tank. ~380miles/tank if I drive conservatively, or as low as ~320miles/tank if I beat on the car constantly. All of these numbers are on the low side considering I used to get 400, 430, and 380 respectively when the car was stock and had the F23 transmission.

K well everything is stock. What would I want to check?