You need a OBDII gauge! It makes driving fun and you will know for sure.
I would take the longer route and keep to the right lane. And around 40-45MPH as much as possible in your automatic. Top speed 60MPH. (don't fight the wind)
I wouldn't take the red-light route unless you can time the lights and hit all green.
(almost impossible, around here at least)
When I get in my car and drive somewhere I try my best to keep it moving until I get to wherever i'm going.
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