Recently bought 2019 Silverado lt trailboss with 5.3 and 8spd tranny
What's the normal operating temp for 8speed transmission? Not towing but just driving in the city/hwy. I'm getting between 70-85 deg Celsius or 158-185 deg f.
Also noticed temp went really high while driving in the moderately deep snow on the back road in 4hi. 140deg Celsius! Which I think is 290f.
Are these temps normal?
Coming off dodge with 5spd tranny it was running at 50 for normal use and Max of 80deg Celsius these high temps are new to me, unsure if it's even normal?
Truck only has 1300km