I'm getting about 16 so far mixed, but this is a lot of rich WOT pulls, need to clean up the AFR

There's a correlation with tire wear and MPG. All the "testing" leads to lower fuel economy and accelerated tire wear. :rofl2:

Jesus, I hardly ever hit 300 miles on a tank and I'm NA still. Don't know if part of that is still motor break-in. I only have 2K miles. I'm also mostly city driving.