LOVE my'15!!! 24mpg

[zacharywhitson]

I honestly can't imagine being any happier this truck after one year of ownership! Thanks gmc!

 

Doing 78- 80mph across Iowa

 

550hp ppei, air dog g2 and down pipe back age. Also HEAVY 305/50-20 ha kooks.

 

 

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[surebuttercringe]

550hp ppei, air dog g2 and down pipe back age.

 

I'm pretty well versed in trucks and truck modifications, but this is just gibberish to me.

[POS VETT]

Diesel?

[Silverado4x4]

_{Well I hate to burst your bubble but did you recal your speedometer for the 305s? If you didn't then your mpg is going to be way off since your truck is recording less mileage and speed then it did with the stock tire size so that's going to make your mpg look really good..}

[jerseydrew]

reset your tribometer and do the math manually i bet that is VERY inaccurate.

[zacharywhitson]

The fuelmileage is off by less than 10%. I checked my odometer with the Garman GPS it was off 12 miles in 2000. Also my speedometer is dead on at every radar trap I drive through and my GPS

 

Yes it's a little high bet I hand calculate every tank and it's never more than 2 mpg high

 

Also IF the big tire size slowed my odometer it would make my mileage look worse than it actually is so you have that backwards. but like I said my odometer and speedometer are both good. So......no dice

 

Ps I'm not a retard

and a used talk to text when I drive so sorry For the jiberish

 

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[JaronM3]

_{Well I hate to burst your bubble but did you recal your speedometer for the 305s? If you didn't then your mpg is going to be way off since your truck is recording less mileage and speed then it did with the stock tire size so that's going to make your mpg look really good..}

 

The tune can adjust the speedo.

[JaronM3]

ImageUploadedByTapatalk1431120052.309837.jpg

I honestly can't imagine being any happier this truck after one year of ownership! Thanks gmc!

 

Doing 78- 80mph across Iowa

 

550hp ppei, air dog g2 and down pipe back age. Also HEAVY 305/50-20 ha kooks.

 

 

Sent from my iPhone using Tapatalk

 

Try using Opti-Lude adjective, it will help with lubrication of the injectors. MPGs will increase as well. Almost the same set-up I have, but I went with a Banks intake.

[Big Whiskey]

I'm pretty well versed in trucks and truck modifications, but this is just gibberish to me.

That means it's a diesel with different injectors, a different fuel system, and different exhaust. And, I'm guessing he's got a custom tune to tie everything together and delete most (if not all) of the EPA garbage.

[KMGZ400]

good luck with that air dog.. Know someone who's had to replace 3 of them within a year