70L tank... Maybe 68 or so if you're a 4 door...
Also, try filling up at Shell if you can... I usually get better mileage from there.

My last tank, from Petro Canada, got me 299km to 57.8L... 12 MPG (that's US MPG)

But then again, that's with spirited driving and 30" tires

I usually average 14 MPG if I really really really really baby it.

 

K I just did some math an i'm getting 9.5 mpg. I drive mainly 7 miles to work and 7 miles back. Honestly I dont gun it, I take my time accellerating and i drive it like an old man. What can I look at to see whats wrong here??? This thing is drinking like a Hemi and im real sad....

 

Well short trips kill your mileage...but you should start a new thread...this is for posting your set up and corresponding mileage.

 

I have a 1994 Blazer with the 4.3; 86,000 miles; 4 Door; and I get about 16.8mpg

 

Can't compare it to a hemi leper. I've gotan 04hemi 1500and it gets better MPG than my 2000 4.3 2wd blazer hands down. And yes both engines are tuned and running well. I haven't figured the MPG yet but it can't be getting much over 10

 

I got 12.5 MPG towing a 10x12 foot single axle sled trailer, with the wind breaker on the front.... at 75 MPH.

 

My newest update with the Powerpup, lowered, no roof rack. 19.9MPG.Major babying! 20-mile commute to and fro.

 

With my new 2door 19-21mpg Highway. For some reason she likes 65-70mph better than 55mph go figure. The drive 55mph for best gas mileage is bull**** if you ask me every car has a sweet spot. Stock rims/tires(for now)


See sig for my truck

 

Good ol' 4x4 Evolution!

The sweet spot, btw, is different for where you're at, and what day your vehicle was made on.... Some Blazers to AWESOME at 55 mph. At 75, last time I kept track, on factory rubber I got 24...

 

VeHicle is a1999 4x4 GMC Jimmy, 4-door with 80000 miles and is loaded with roof rack, sun roof, leather seats and NRA membersticker on back glass.
Has brand new Goodyear WranglerRadials 235-75x15.
I've owned it about a month.
I've checked mpg4 times.
Type of driving is rural/suburban 2 lane highways. No interstate driving yet.
Fuel milage as follows:
122.0 miles on 16.2 gallons of B-P 87 octane = 16.2 mpg included a top speed blast- 96 mph wall.
225.5 miles on 13.5 gallons of B-P 89 octane = 16.7 mpg.
66.0 miles on 4.0 gallons of 89 octane = 16.5 mpg.
53.8 miles on 3.2 gallons of 89 octane = 16.8 mpg.

I wonder if we get better mpg with 93 octane instead of 87 octane?