Tire wear

[scottminor]

So the crazy thing... I had an alignment done, which was need and had them put 40PSI in them. My MPG before 10-11. On the way home 14-15.

How can there be such a dramatic change?

[mbdougl]

Did you reset the Mileage indicator? It will read higher for a while until is has more data.

[scottminor]

I did. It seems to have a short averaging cycle. I think I drove it enought that I saw it average down and up and down. I drive it again this eveing and check it again. How many miles does it take?

[mbdougl]

I have a completely stock 2004 and it will always come back to around 13.1 mpg within a few miles.

[scottminor]

13 MPG is all I ever got in my Avalanche Z71 with the autotrack option. And this with Auto track dis-engaged.

[scottminor]

It dropped down to 11 MPG this afternoon.

[Scarsman]

Boy, you guys' avatars back to back are trippy!

I have been resetting my "average MPG" and "fuel used" each time I fill up with gas, and so far it is right on the money with manual calculations; i.e. miles driven divided by fuel pumped. If I don't reset it, it starts to differ from manual calculations.

So, now I just reset at each fuel and go with what it says. So far with mixed county road driving and town, it is getting 11-13. We made a trip across WA state towing a trailer and it got 13. The trailer was about 1800-2000 pounds, and speeds were 55-65. We were on state roads not freeway.