View Single Post
Old 09-07-2009, 07:01 PM   #12 (permalink)
2000mc
herp derp Apprentice
 
Join Date: Oct 2008
Location: Lawrence, KS
Posts: 1,049

Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

Yukon - '03 GMC Yukon Denali
90 day: 13.74 mpg (US)
Thanks: 43
Thanked 331 Times in 233 Posts
Quote:
Originally Posted by orange4boy View Post
Is this true on all automatics? Some of the newer ones must have fixed that issue because they now lock up the majority of the time. (obviously not mine)

I would imagine that since most of the heat generated by the transmission is generated by the inefficiency of the unlocked TC that over heating from a locked TC is a non issue.

i dont know if all do it or not, but youre right on the money with your guess why. most of the heat generated is from the converter slipping, and why cooler flow isnt required during lockup
  Reply With Quote