Automatic shift speeds (mph)

[alvin201]

I have a 2007 Touring, NA and it is the first automatic transmission car I owned (always has standard trans before).

Is there a precise point where the auto trans upshifts to the next gear? Or, does it depend on rpm and/or load (uphill or level).

In normal city driving, it seems to go to 2nd gear abut 10-15 mph; and 3rd about 20-25 mph; but I can't really sense the shifting to 4th especially in traffic (We don't really see traffic-free straightaways around here).

Seems to me in doing a moderate acceleration (under 2000 rpm) it should always shift at the same point on level ground.

I really am satisfied with my PT's gas mileage; but would appreciate any tips or suggestions in making my driving habits more fuel-efficient.
Thanks.

[Hooligan]

Hey there Alvin, I think your right with the shifting at different speeds. I will speed up to about 35-40 to shift into 4th and then let off, normally I will be able to stay in 4th even tho I have slowed down. Seeing that I usually do mostly city driving I do a easy roll up to lights after timing my stops and barely touch the brakes. If you look at my "Fuelly" you'll see my average is 22.2 MPG. I'm very happy with that.

[quicksilverdon]

The tranny actually "learns" how you drive (actually, the computer "learns"). Mine used to drop down to third at about 40 mph, but now, as I drive easier, it'll stay in 4th to about 35.
I have averaged just over 25 mpg - total overall - over 76,000+ miles - I keep a log of all the gas I put in.

[alvin201]

Thanks