4T60/4T65 can't EOC for long. Maybe a few blocks, if that. They're designed perfectly for use with an engine, and to be stationary when the engine's off.
The TCC lockup switch would be handy when running in 2nd gear. Otherwise 3rd at 30 mph for me has the engine at 1000 RPM. Check your gears, too. You might have the city 3.06 gears instead of the highway 2.86 gears like my Buick has.
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2012 Chevrolet Cruze Eco 6MT
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