I was due to change my transmission fluid for the first time since purchasing this car(2017 Chevy equinox w/2.4L engine) So I was following the Haynes manual instructions and drained the oil into an empty pan and then measured the amount of oil that came out of the vehicle which was 4.61L, I then added 4.5L of transmission oil back into the car expecting to top it up as needed. I idled the car for 5 minutes and then shifted through all the gears as stated in the manual, took out the transmission oil check plug and oil started pouring out. I checked how much came out of the check plug and it was 1.8L. which would mean that there would only be 2.81L remaining in the car, the capacity in the manual says 5.2 quarts/4.920L. so the number that initially drained seems more in line with what the car needs I’m just not sure where I would’ve gone wrong, I had the car level on 4 jacks. I’m stumped.
Thanks in advance,