@Grumpy Bear and everyone else.
I have a 2018 Silverado 5.3 6L80. I did the thermostat delete last year after noticing temps going from 180 average to 190 towing in the summer. I dropped the pan/filter and changed fluid. I just did another pan drop, but this time added a pan with a drain plug so I can change fluid more frequently.
Question... do we need to add more fluid to the trans than to the cold mark since the thermostat is gone? I ask because, when I originally did this, i filled to cold mark. Ran through the gears, drove it to warmer tems (140s is high as it will get during that time)... Then added more to stop any slight whine or anything else. Never had an issue... I just think i over filled it. It is always over the hot...
I am doing quick little drain and fill again because i think the drain bold might have a leak, but i want to make sure i fill it back right. Filling what I took out, is usually about how it goes because I fill the new containers back up.
What are your thoughts? I drained all my fluid down to the cold mark this morning.
THank you in advance.