I’ve been driving an automatic since I passed nearly a decade ago. In that time whenever I tell anyone I drive auto, it’s usually met with some level of derision. I think that attitude is changing, but I’m still kind of confused by it in the first place.
Why?
Dropping 250lbs and removing the torque converter (~2% loss alone) will do more for overall fuel efficiency for your car than anything those automatic transmissions can do.
Yeah, I get that computers + improved automatic modes of transmission control (ex: CVTs or Dual Clutch Transmissions) can improve engagement times. And the removal of the wet-clutch/slushbox of automatic transmissions grossly improves efficiency. But these units are still heavier in practice than a dumb, manual clutch.
I don’t think any automatic transmission beats a manual in efficient driving yet. Because weight is king. Automatics (at least, DCTs and CVTs) are finally reaching the response times of a manual transmission by having more direct connection of accelerator pedal to the engine… but the weight issue, cost-issue are still there.
At least modern transmissions basically never brake down anymore. (CVTs, Dual Clutch, and more are all basically going to last the whole lifetime of a typical car).
Tbf the whole argument is basically moot with electric vehicles taking over.