Average mpg

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Landonz

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I have a 2013 Chevy Tahoe 5.3L...what should i expect to average for mpg? Mostly city driving. I try to baby it as much as possible.
 

cfmistry

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All stock (AFM on + <20" wheels), I would guess 14mpg.
 

FrankU

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Before getting a BB tune the 5.3 was getting 12.8 mpg after the tune it got 15.6 . I took out the 5.3 and installed a 6.2 L9H and now gets 19.4 , now I didn't install the 6.2 for fuel economy but it's an added perk. The MPG's are calculated also.


Correction.................. MPG on the last 2 tanks were watched closely and calculated out to 14.4-5 MPG

I must stop drinking.
 
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ls1frc

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Before getting a BB tune the 5.3 was getting 12.8 mpg after the tune it got 15.6 . I took out the 5.3 and installed a 6.2 L9H and now gets 19.4 , now I didn't install the 6.2 for fuel economy but it's an added perk. The MPG's are calculated also.

My 5.3 with DOD got about 14. Dod delete with cam/headers was about 13. This is a mix of 40 mph roads and stoplights.

If my 6.2 can just equal my dod-less 5.3, I'd be ecstatic. How does the 6.2 get 19.4?????
 
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Landonz

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Ok, I have been averaging around 13-13.5 so I'm not far off from everyone else. Thank you for all the input!
 

Aeterna

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I have an 07 LM7 4x4 4speed with 373 gears. I get anywhere from 12-16 pending my driving circumstances.
 

FrankU

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I have no idea how the L9H get's 19.4 mpg its a bit hard for me to understand that also. But the DIC and calculations verify it. The tune is still BB's for the 5.3 and it can't be far off if anything.Still has the 5.3 exhaust.


Correction.................. MPG on the last 2 tanks were watched closely and calculated out to 14.4-5 MPG

I must stop drinking.
 
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91RS

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My 5.3 with DOD got about 14. Dod delete with cam/headers was about 13. This is a mix of 40 mph roads and stoplights.

If my 6.2 can just equal my dod-less 5.3, I'd be ecstatic. How does the 6.2 get 19.4?????

I don’t see how that’s possible. I’ve never seen more than 16mpg from my 6.2L even on the highway. I usually averaged 14mpg stock. I get like 12mpg now with the cam but I have been getting on it a lot more.
 

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