Today i measure up my MPG and found out that i am getting about
16.74 city traffic.Is that normal and how much gallons is our fuel
tanks.

 

i get around 17-18 in the city...my highway is like around high 20s....

edit: i just got 18.54 all city driving!

 

i believe we have 15 gallon fuel tanks?or 15.5?

 

I think they're 15gallon tanks and I get about 140 - 160miles per TANK not even city driving, kinda in between....cruisin at 40 mostly. Horrible gas milage.

 

i get about 15.5 driving it rough in the city and about 26 highway even with 3.73 rear end and all of the motor mods. we have 15.5 gallon tanks.

 

15miles tank I'm pretty sure. I get 140 - 160 miles per TANK doin mostly 40mph cruisin more then anything. Horrible gas milage, considerable idling though...about 40mins a day worth 5 days a week.

 

Then i think i am getting a good one since i drive only 4 miles on a highway and the rest is a horrible traffic doing about 25mph or less. Also found out at 1AAuto is selling a fuel tank for our cars that is 14 gallons. Is their tanks smaller?

 

my car gets almost all city driving. Over the summer I get about 17-18'ish.

winter, letting it idle and engine never gets full operating temp. I get about 15.

My car has gotten 28 on highway, and once it claims to have gotten 31.6 I wont belive that tell it does it again.

 

I'm getting 17-19 mpg. Mostly short drives. It is only 8.5 miles one way to work, stores are about 10 miles away. Barely long enough for the thermostat to open once. I fill up at about 1/4 tank, takes 11-12 gallons, so it has to be a 15.5 gallon tank.

I also can't seem to keep my foot out of it.

 

I get just over 300 per tank, and that's TURBOCHARGED!!

 

just another reason to buy your turbo right?
jeez thats good...i get around 230-250 a tank

 

my guage is f-uped, so I fill up at 200 miles no mater what!

 

Dale it's a Chevy! My gauge reads 1/4 when it's empty and over full when it's full. The speedo doesn't start to read until you drive a mile or two.

As far as mileage the best I have recorded is 26.5- but I am sure at 203,000 miles the injectors are not what they should be.

I'm sure if a trip was made in cooler weather without the A/C blasting, a passenger and suitcases and cruise control (that we don't have) locked at 70 we would do better.

 

Mine gets 17-19 city and about 25 highway. Fuel tank capacity for our cars is 14 gallons, but you can squeeze a little more than that in I imagine.

 

Where did you get 14 gallons from? GM service manual for '87 only lists a 15.5 (fuel injection) and a 16.2 (carb) gallon tank.

There were several diff. size tanks between years, and options. From 12 gallons up to 16.2...
https://www.thirdgen.org/techbb2/sho...l+tank+gallons

 

i saw a 14 gallons tank at the 1aauto website


http://www.1aauto.com/1A/GasTanks/Ch.../GM2721B/8627.


It says 82-92.Could They be wrong because every time i go to the gas station my car gets only 11 or 12 gallons. It with the neddle al the way down.

 

This is another one of those subjects that everyone has a different answer for. There are several reasons why our cars will take different amounts of fuel.

Several different size gas tanks were used, depending on year and options.
The gas gauge is not the most accurate.
You can't get all the fuel out of the tank with the fuel pump.
Gas pumps shut off when the foam reaches the nozzle, not liquid, so you can usually squeeze .5 to 2 gallons more in

 

ok so if you avarage this out to
150 mpg the cut into that by 15

your only getting around 10mpg?????
what problems are you having
if any with your car?????

sorry but you just seem to be about 6 under everone else!!

 

My cat was plugged. I acquired a test pipe. I average 20mpg. My best is 27 hwy. If I had my injectors redone by Rich, would I see gains in mileage, and if so why?

 

If your injectors are leaking because they are dirty (like mine were) then cleaning them would keep them from wasting gas. Better spray pattern = better air fuel mix= more efficient combustion.

 

Yes, I knocked down about 26 mpg, pre turbocharged, and with new, clean injectors.

Now I'm doing more like 22-23 mpg average.

 

i think that he means that he only dropped like 3-4 mpg with the cleaned injectors AND turbo! that's really not too bad!

 

If its all highway i get about 30 MPG When i have city/hwy i get about 20 and if its all city about 15.

 

If i get all highway my average is 23 but city is 16.7. For what i have seen here is pretty good.