Thank you for the thorough reply, Lucian! I didn't mean to sound that naive; I should have clarified that I meant 4L regarding coasting down that hill. I was 90% sure it would be okay for the transmission. I just figure it couldn't hurt to ask the experts! I'll try it in 4L, and hopefully it'll keep me going slow the whole way down the hill without having to brake. There's pretty much no traffic on that road so it won't matter if I'm coasting along 10 mph.