I just changed my tranny oil to 75 90 mobil 1 synth. I took it for a test drive an i didn't notice much difference besides the fact that it shifted easier. All the tranny noises are still there. I filled it up right on the dot of F, it was over but I had to carefully pump some out. But when I took a wiff of the stock tranny oil, it had a slight burnt smell, with some kind of sweet smell behind it. Is this normal? Because I know burnt is not a good smell for any oil, which means lots of heat was there at one point. Feedback please!