Ask EE

guidomerkinsrules said

You’re driving at 32 mph
Automatic transmission usually ‘shifts’ at 35
fuel/engine life is it better to drive fast enough to ‘shift’ or stay at 32?

Click to expand...

This is an old car question. New cars have enough gears and enough controller processing power to render this a non-issue. What car, specifically, are you asking about? Is there a grade? Wind? What altitude are we at?