What did you do to your 2015-2020 K2XX Tahoe/Yukon Today?

[the 18th letter]

So that’s your average MPG with engine half ass disabled? Nice…

Bottom number was best pre EHA, and the top is the best since I had it disabled.

 

[RST Dana]

I’ve put about 800 miles on my BB tune mostly highway miles cruising from 72-79 mph depending on traffic. Saw my best mileage since EHA (@Marky Dissod ) last 100 miles were running about 75 mph for most of it.
View attachment 455876

Onboard mileage can be deceiving. Especially set to the last 25 miles. Manual calculations will absolutely be the only true way to determine your happiness, since it’s directly tied to your bank account. We made a trip back from the beach to OH a couple of years ago, averaging 81MPH. My mileage was 19.9 manually calculated. I was happy with a 6.2 getting those numbers.

 

[the 18th letter]

Onboard mileage can be deceiving. Especially set to the last 25 miles. Manual calculations will absolutely be the only true way to determine your happiness, since it’s directly tied to your bank account. We made a trip back from the beach to OH a couple of years ago, averaging 81MPH. My mileage was 19.9 manually calculated. I was happy with a 6.2 getting those numbers.

So it could actually be higher? Hopefully the miscalculations have remained consistent pre and post AFM tuning, I usually refuel at half a tank. (now that I’ve learned that the computer is off I can see myself doing a manual calculation to see just how off the computer is) How did your onboard mileage compare to your calculated mileage on that trip?

 

[Loki223]

New decals on the back

And new rims and rubber all around

 

[NYBRD]

Did I get a defective sway bar ? One side looks bent and both bushings cracked while I was torqueing them down. The one side that looks bent needed endlink 5 extra full rotations to be straight.
What gives ?!

 

[RST Dana]

So it could actually be higher? Hopefully the miscalculations have remained consistent pre and post AFM tuning, I usually refuel at half a tank. (now that I’ve learned that the computer is off I can see myself doing a manual calculation to see just how off the computer is) How did your onboard mileage compare to your calculated mileage on that trip?

25 miles is not an indicator to get excited about. I’ve been tracking every gallon of fuel purchased for the last several vehicles. Sometimes they are close, sometimes not. No way to tell without math skills. My 21 is the “most” consistent with the vehicle my 2016 Tahoe.