Backing out in Neutral from Garage without engine on safe for the transmission?
Theoretical question for you all. I live in a newer house with a single garage, but I don't want any exhaust lingering in there any more than there needs to be. I don't notice anything unusual with gas being trapped, but just as a safety habit in general (and since I didn't build the house, do the drywall, etc...who knows if any off gases could actually still enter from somewhere I can't see).
I'm wondering then, since my garage is slightly sloped out for drainage: could I simply back out the car by putting it in neutral and then, once outside, turn it on? I don't want to cause any damage to the transmission or what not (and yes, I know that by doing this, I would have no power brakes). I figure this would minimize off gases in the garage but if it's going to wreck my transmission or something...
Constructive 2 cents are always appreciated!