gas mileage

[Maybelline]

for people with 240sx fastbacks, what kind of gas mileage do you get? i just got mine and my gas meter drops really fast for some reason. when the tank is full it goes wayy past the full mark on the meter. but after driving maybe 20 NYC miles, i drop down 1/4 of my meter. could i have a leak, or do these cars just have small tanks.

[240_Keyy]

when I still had my KA back in the day I got about 18 mpg in town and about 22mpg on the highway. Now that I have SR I get about 14mpg in town and like 31 on the highway

[Checkered-Member]

for people with 240sx fastbacks, what kind of gas mileage do you get? i just got mine and my gas meter drops really fast for some reason. when the tank is full it goes wayy past the full mark on the meter. but after driving maybe 20 NYC miles, i drop down 1/4 of my meter. could i have a leak, or do these cars just have small tanks.

That is not how you measure fuel consumption your gauge is there to tell you if its full empty or somewhere in between, not that you have 3.567 gallons left.

do a more accurate reading from miles traveled to the amount of fuel you put in

[bcar240]

From the two hatches I have had I have learned one thing about the gas gauge, totally weird. It goes down quick after a fill then stays in the same place for 50 miles, etc. But it does give a general idea how much gas you have. But after mine reads empty I still have about 4-5 gallons left. I find it fun to scare my friends when they look at my gas gauge when it is about another 1/4 distance below the empty mark (they think I am terribly stingy now.) Anyway, doing a milage check is a good idea.

[Ajax]

I read somewhere that most gas gauges use an intentionally skewed gauge so that people don't run out of gas. The warning lamp should start lighting up at about 3 gallons left. I get 24mpg average with an 11 mile trip to work- some residential some highway. On all out highway, Minnesaota to Chicago, about 28-29mpg.

[Ajax]

Oh yeah and the tank is huge- just under 16 gallons!

[Maybelline]

my trip odometer doesn't reset for some reason. when i reset it the first time, it went from 257 to 48. now it only resets whenever it goes up to like 70+, and it resets to random places below 50. anyone know how to fix this?

i'm just overly cautious about gas cuz i've run out of gas in the middle of the road a few times. i always try to have more than 1/3 tank on my gauge. so a full tank should last me about 250 miles in NYC traffic? or about 375-425 in highway traffic?

[Ajax]

I've had somewhat similar problems on my odometer. Sometimes mine just takes a few hard pushes. My car actually has a few extra miles than the odometer says as it used to stop working now and again- very strange- no clue why.

[navysnail]

yeah, you should get about that mileage, but depending on the conditions you may get more or less, if its colder outside you will get worse, if you drive hard it will get worse etc...

i get about 22 mpg city and highway

[180fan]

KA - ~20 city (depending on how I drive) city/ 25-27mpg highway (depending usually on how heavy traffic is)

SR - ~25 city/ ? highway, haven't taken it to the highway yet.

[OrangeCrush]

IT all just depends on how hard you drive. How i dont have a 240 yet, ( but i just found one locally!) my mpg sucks because i floor it everytime i pull out somewhere. So if you take it easy. Gas shouldnt be a problem.

[ziggy682]

My KA-T gets about 22 mpg. That's mixed highway/city driving.

It's strange that my mileage didn't drop any when I turbocharged it.

[bcar240]

Yeah I have had a load of problems with my odometer as well. In my previous hatch the trip odo wouldn't reset, exactly like your problem. When I finally took it out I figured out why... When you push the reset it disengages the mile counting gearing and a set of fingers comes down and presses on the number wheels to reset them back to 0. On mine, when it broke, some of the fingers were cracked off so they didn't reset the numbers. There is nothing you can do really to fix it except get a new trip odometer (maybe from a junkyard). You just need the trip odometer, you can replace it without messing with the regular odometer, but be very cautious when taking it apart so you can put it back together the same way. Also for the problem of intermittant operation, in my case it was due to a bad connection somewhere in the speedometer (because the speedometer runs the odometer.) Took me three days and I had to hook up and disconnect my cluster like 20 times to finally figure it out, I finally just installed a new speedo. By the way, I figure I can get about 300 miles per tank or more, but I don't drive very economically :pface .

this is a good link on how to get the the clusterhttp://www.lsauto.com/install.asp

[Krux]

My 91 240sx gets about 30mpg on the free way and I dont really know what it gets in town i can usally get about 230miles off a half tank of gas or atleast whatever amount of gas is in my car that makes the needle go up to half (my needle is broken doesn't go all the way to full)

[rno240]

The be sure of your gas milage on a period of time try this:

1.Drive until you're pretty much out of gas (be careful so you can make it to the gas station)

2.Fill up your tank and write down the number of gallons it took3. Reset your Trip Odometer (if it's not working skip the whole thing. You need this)4.Drive like you usually do

When it's time to fill up again, write down the number of miles on the odometer and then do the math (odometer reading/gallons) and voila! you have an accurate, customized to your driving MPG.

I do this once a month and it helps me identify if there are things I need to look at under the hood.

BTW- does anyone know if you can clean out the gas tank? How?All that sediment can't be good for the gas milage either.

[rawill240sx]

I've been getting a little over 28mpg on average. Almost all of my driving is highway with the cruise on at 75mph.

[TrentS13]

I get on average 26mpg on my 89 `102,000 hatch. If I drive only on highway, I get 31mpg. I cleaned my MAFS, changed my O2 sensor as well. I disconnected my IAV because it made my engine screwy, but it does not affect the engine performance wise.

[D-3vil]

Here's a post from Canada In the summer, my '93 240SX burns about 9.5/100km (25MPG) with mixed driving. For mostly highway, it's about 8L/100 (29.6MPG).In the winter (I live in Ontario), it can go up to as much as 13L/100km (18MPG) with mixed driving.

[Doomed2Walk]

The gas meter is odd on my S14. I'll drive around, then like from 3/4s it goes under 1/2 after driving maybe 10 miles. Then when I come back it's like above 1/2.

[D-3vil]

yeah... gas meter behaviour is odd... however, for me it manages to always show correctly when the tank is empty or half full... everything else is a vague guesstimate.