been a ls1tech member for years... don't venture HERE to much, till the last few weeks here and there. Plan to spend LOTS more here. I have been a GM tech for years, working on ALL GM vehicles but, lots of time was spent on the truck and Y body platforms. I love the Tahoe's,..and with my budget, I can probably buy one for about 5k tops, without hurting my house hunting.

I found a Z71 for that,...I am interested in it but, I am curious how BAD the mileage would be. All I can find documentation wise is that the 2WD and the 4WD are CLAIMED as the same fuel economy ratings... 13/17. Is that real world for you guys that have them? Or are you getting better/worse with tunes/mods?

I drive a 6cylinder truck right now daily, about 25miles on the highway to work each way..@about 80+mph.....I get about 19miles I think @3500rpms....in that pos. So,..a larger truck,..CLOSE to the same ratings, stock for stock, ain't bad. I have access to tunes/and efficiency mods(turbo or two ) to help her out.


Anyways, if any 2wd/4wd dudes could post up, that would be awesome. I am trying to make a decision by tomorrow.... as I need to make plans for my weekend.... am I gonna buy a truck, or bust my *** on cars? lol.

So please, feed me some info, I would greastly appreciate your personal results and input here on ownership.

Thanks so much in advance,
Jamie

 

Welcome to the cool kids side of the forum

I bought a 03? Tahoe Z71 last year for cheap.. it had a burnt transmission..
Still havent had time to rebuild it but maybe one day ill let ya know how crappy the mileage is

Good luck to ya!

 

Lol,..awesome Jonathan, thanks man. And thank you for the welcome holmes. Tech has gotten a little VAG like lately

 

Most Tahoes with 5.3 engines will see about 13/17. With certain performance upgrades the number may rise or fall, depending on driving style. My city mileage is currently about 11MPG, highway mileage is about 21MPG.

 

I get 14-15 around town and 16-17 on the interstate in my 2001. I also have 33's with 3.73 gears, intake, muffler and tune. It is only a few thousand shy of 200K miles and have not had to replace anything major. However, the suspension is starting to get a little sloppy so I think it is time for some bushing replacements.

 

I get about 15 Mpg average I'm cammed, supercharged