GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

Gas Mileage!!!!

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Old Jan 10, 2008 | 04:40 PM
  #11  
03sierraslt's Avatar
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The best mileage is had by leaving it parked......
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Old Jan 10, 2008 | 06:26 PM
  #12  
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Originally Posted by 03sierraslt
The best mileage is had by leaving it parked......
lol, technically thats not mileage, thats idle time

best mileage i've had is on the back of the tow truck after i broke the transmission for the third time

other than that depends how i drive it, ranges from 4mpg to 12
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Old Jan 11, 2008 | 12:27 PM
  #13  
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my mileage kept slowly increasing after the first few mods i did, now its slowly decreasing.

damnit!! they say a turbocharger will increase mileage if you dont accelerate hard.

good luck trying to do that!

tell ya what, if you buy me a turbo, i will test the kit for you and see what the mileage is like. STS single will be fine for me.
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Old Jan 11, 2008 | 12:41 PM
  #14  
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Originally Posted by TexasCowboy26
ok so i was wanting to know if any of yall have tried any gas saving devices that actually work
ive been playin with my tune...

But if i drive it pretty hard around 100% town ive averaged 12.5mpg

Drive it easy as possible in town and i got 15mpg

Drive it easy on the highway and i get 23mpg...

Thats not too bad but id like to see it a lil better..

Ive set my AFR to 15.5 cruising and got some semi aggressive DFCO.. that helps a lil bit... and gets some attn when you let off the throttle... hehe

this is with the LQ4/STS/3000 stall/65E/3.42s/ 29" tires...
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Old Jan 11, 2008 | 02:39 PM
  #15  
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MPG......WISH I GOT THAT.....WHEN MY TRUCK MOVES ITS GPM gal/mile lol i can never keep the gas pedal off the floor! lol maybe that explains why trannys keep going out in my truck! FLT here i come!
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