Why do automatics transmissions go to 5th gear so quickly?

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Even if your staying below 40 and not forcing rpms up automatics still just want to get to 5th and stay there as soon as it gets some distance.
Why shift to the highest gear when your barely making the first 4 do anything?

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5 Answers

Anonymous 0 Comments

The others already answered your question, but wanted to share that this isn’t special with automatic transmissions. The principle of “using the highest gear with the least amount of RPM without lagging the engine” is one end of spectrum to drive efficiently, on the other end it’s to get the most power from your transmission by “using the lowest gear at the highest rpm without going into redline” (generally the power band is near redline but there are exceptions)

In my manual, ~30 mph is where I go to 5th, and ~38 is when I go to 6th. Meanwhile if I’m driving aggressively, my first gear go to about 45 when it hits redline

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