Hello everyone, I started noticing a transmission problem on my 2009 Challenger SE. This is the 42RLE tranny (4spd auto). There is a delay shifting into 4th and out of 4th. This happens when I am light on the gas pedal going between 40-50MPH. If I am heavy on the gas it there is less of a delay, but it's still delayed. Could I be low on transmission oil? I bought this aftermarket tranny dipstick from eBay https://www.ebay.com/itm/162394038973 Unfortunately I don't have a way of checking the tranny temperature before measuring. Tried to find a temp probe on eBay, but to no avail. Can I just check it after my 30min drive to work and assume it's at operating temp? Also, I read there was a TSB out for the 42RLE transmissions. Would reflashing transmission control module or updating PCM to adjust shift points work? THANKS FOR YOUR HELP!