Gas Mileage

[Blazed]

I'm new to the autocal world as well!
Since today.

 

[Brock]

I had the BB tune done in 10.2012. Getting 17 hwy & 14 in town, but that's w/ premium fuel.
The BB tune is worth it. Way more power ++!!!

 

[Jmat]

I have a NNBS and have the 6.2L. I took a recent trip and I am getting about the same gas mileage on the highway as I am just my normal every day travel. I do drive some in town and highway. I'm getting around 14mpg. Is this what everyone is experiencing?

Best I've averaged on the HWY is 18.5 That's on a 5.3 with a BB tune. 14 Hwy MPG sounds awful low even for a 6.2. Sure your numbers are accurate?

 

[Goodinblack]

I'm new to the autocal world as well!
Since today.

Looks like another adventure

 

[YuCanada]

Damn some of you are getting good numbers. My average over the last 2000 miles has been 11.2 MPG. Combination of city/highway but mostly city.

Oh well, I didn't buy a full size SUV to save on gas!

 

[Goodinblack]

Best I ever gotten was 21 on hwy.

I avg about 17-18.

 

[MACHO]

85% city with 5.3L, BB 91+ tune, in 2Hi, 3.42 gears, I average 14.5-15 mpg on winter blend right now, wife does most of this driving. If I was doing most of it it'd be 15.5-16mpg Was averaging 16-17 before tune but also on summer fuel. I'm interested to see the improvement on summer fuel.

That's impressive @GiB. I know you're a very efficient driver. You do a lot of hwy right?

 

[Blazed]

macho did you ever get the tcm tune figured out?

 

[Cypress]

I'm getting about 13mpg city and 19 on the highway but still have less than 3k miles on my '12 5.3. Hopefully things will improve a bit after the motor is more broken in.

 

[MACHO]

macho did you ever get the tcm tune figured out?

I received an "intermediate" TCM tune from Justin which is in-between the stock and my original TCM tune. Will be starting my mpg log on that one shortly.