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I increased my speed from 4mph to 5mph and managed to jog for 45min without dying. Wow, what a difference 1mph makes. That was so much more difficult than jogging at 4mph. I didn't burn as many calories but I felt more winded and my leg muscles felt like they got more of a workout. The 45min might be too much for me right now so I think I might just do 30min next time.

After jogging I had a protein drink, without the dextrose and maltodextrin, since I'm using cardio to lose fat. Am I on the right track with that thinking or would I actually be better off consuming the carbs from the dextrose/maltodextrin in order to metabolize the protein faster like I read I should after lifting? Thanks.

I'm usually in the gym for weight training sessions 3 times a week. I always do 10 minutes on the elliptical for warm up and then 20 - 30 minutes of cardio after my 30 minute weight session. I try to keep my heart rate at 125 - 140 during the cardio after training.
Seems to work for me but then I'm 59 years old and have two main goals: keep the muscle mass and get rid of the fat!