A few weeks ago I sucked out the ATF pan through the dipstick tube and refilled with the above fluid. Almost instantly it started shifting weird, delayed shift like excess slipping. Going from P or N to drive is also delayed then it clunks into gear. Fluid level is right where it should be. I plan on pulling the pan and replacing the filter this next week and will be refilling it with a different fluid then flushing it with the new fluid. 2016 Silverado, 6 speed auto.