My new 2010 Yaris seems slow

[mryaris]

Just an FYI......high altitude areas (like Colorado) use lower octane gas because in this stratified air, 85 octane behaves like 87 octane.

This always confuses people who visit or just move here because they have always been told that 87 is the minimum octane rating they should use and they wind up spending more than they need to. In reality, 87 octane up here is like 90 octane at sea level. So when you fillup in the mountains use 85 octane! :)