No worries...Originally Posted by Wattie
FWIW I had manual lock up selector on a 4L85 auto (behind a 6.5 Chev) in a GU Ute and also on a Patrol RE4 auto (behind a TB42efi) in a GQ Wagon.
With the lock up available both boxes ran at pretty much the engine temp.
The lock up on the RE4 made the biggest difference between "before and after" temps pretty much as expected as the 4L85 is rated to much higher specs
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