Experimenting with bypassing the AT 4th gear prohibition when cold - Toyota Yaris Forums

bronsin · 12-20-2011, 06:25 AM

IF you usually drive your car ~ five miles then shut it off (like going to work) having the car in 4th instead of third for five miles instead of 3 and a half could make a big difference. (would it really?)

Since manual transmissions can be shifted into fifth right away whatever the lockout feature is "helping" doesnt apply to them. Are manaul transmission cars suffering premature failures because of this. Seems unlikely.

You would think full time fourth gear would improve the Yaris city mpg features. Wouldnt Toyota want to trumpet that? Isnt it in their interest?

You would think so.

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12-20-2011, 06:25 AM	#2
bronsin Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008 Location: nj Posts: 4,784	IF you usually drive your car ~ five miles then shut it off (like going to work) having the car in 4th instead of third for five miles instead of 3 and a half could make a big difference. (would it really?) Since manual transmissions can be shifted into fifth right away whatever the lockout feature is "helping" doesnt apply to them. Are manaul transmission cars suffering premature failures because of this. Seems unlikely. You would think full time fourth gear would improve the Yaris city mpg features. Wouldnt Toyota want to trumpet that? Isnt it in their interest? You would think so.